Homework Answers
4) when ammeter is properly connected, the effective resistance of the circuit increases and hence the current through the circuit decrease. Now we know that power of batter = V × current,
So If current is decreased, then power of the battery will also DECREASE.
5) when we connect the voltmeter in the circuit, the effective Resistance of the circuit decreases , and hence the current increases which ultimately result in the INCREASE of power of the battery.
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Questions #4-5: consider the circuit below: 10012 W- E = 10 V 4. A real ammeter...
for circuit shown in figure the battery has no appreciable internal resistance. voltmeter and anmeter are...
for circuit shown in figure the battery has no appreciable
internal resistance. voltmeter and anmeter are ideal
2. (20 points, 5 points each) For the circuit shown in Figure, the battery has no appreciable internal resistance. Voltmeter and Ammeter are ideal. (a) What is the equivalent resistance of the circuit? 3 kn 2 kn R(series Rea» 3.734 3.21: 8-73 kn (b) What does the voltmeter read? parrele witn R4 . Vz4s τ24( 2 +): o.or7 (3.73 xu?): 47. 37lV (c)...
Consider a circuit containing a 24 V battery and a 15 Ω resistor. We want to...
Consider a circuit containing a 24 V battery and a 15 Ω resistor. We want to mesure the current in the circuit with an ammeter of internal resistance 3 mΩ and the voltage drop across the resistor with a voltmeter having an internal resistance of 100 kΩ. a. How should be the ammeter connected (series or parallel)? b. How should be the voltmeter connected (series or parallel)? c. Draw a schematic of the circuit d. Calculate the current across the...
Consider the circuit shown below. All three batteries are ideal. The voltmeter and ammeter are also...
Consider the circuit shown below. All three batteries are ideal. The voltmeter and ammeter are also ideal. 7.00V 崇弓= 12.0V v) R 5.00 R2 6.00 Ω = 8.00 V A. What is the internal resistance of the batteries? B. What is the internal resistance of the voltmeter? C. what is the internal resistance of the ammeter? D. Based on your answers to questions A-C draw a simpler equivalent circuit (in the space above to the right of the original circuit)...
Hello, I only need part D and E. Show all work for those two parts. The resistance of the Ammeter...
Hello,
I only need part D and E. Show all work for those two parts.
Note: the last question in part (e) asks for the I measured by
ammeter, and actual I1
In the figure below, R1-6.50 Ω and R2-R,-R4-26.0 Ω" The battery has an emf of ε-120 V. R1 Ry a.) How much energy is dissipated by all four resistors in one minute? Inserting a measurement device into a circuit to figure out what it's doing will actually affect...
*** Problem 3 When switch S in Figure 1 is open, the voltmeter V reads 3.08...
*** Problem 3 When switch S in Figure 1 is open, the voltmeter V reads 3.08 V. When the switch is closed, the voltmeter reading drops to 2.97 V, and the ammeter reads 1.65 A. (Note: r is internal resistance of the battery.) fr Figure 1: Assume that the two meters are ideal so they don't affect the current in the circuit. a What is the EMF, V, produced by the battery? b) What is the liternal cesistance, r, of...
Problem 5 - variation of problem 30.64: Using the circuit shown in Figure 4, a) Find the reading in each ammeter...
Problem 5 - variation of problem 30.64: Using the circuit shown in Figure 4, a) Find the reading in each ammeter and voltmeter just after switch S is closed b) Find the reading in each ammeter and voltmeter after S has been closed a very long time. c) At what time does the power in the inductor equal the power in the 75 Ω resistor? 100.0Ω 100.0Ω 15.0mH 50.0V 50.0Ω D 75.0Ω
Problem 5 - variation of problem 30.64: Using...
at 120 volts. a. the same b. less J BOX 2-POLE СВ 120/208 v 30, 4-W...
at 120 volts. a. the same b. less J BOX 2-POLE СВ 120/208 v 30, 4-W PANEL K 208 VOLTS DUCT 115.312 Line-to-Line HEATER ct heater contains two identically-rated ne two identically-rated heating elements that are connected as shown. ce rigure 115.312. If the leads of the voltmeter were moved to TI & 14, the r 3. See Figure 115.312. If the lea _ volts. a. 104 b. 120 d. O c. 208 4. See Figure 115.312. If the leads...
4) Given the circuit below. The voltage is 5 volts and each resistor is 10 ohms....
4) Given the circuit below. The voltage is 5 volts and each
resistor is 10 ohms. The current flowing through the circuit (when
measured by an ideal ammeter) is 1 amp.
a) Show current through the circuit is 1 A.
Next, assume you put a DMM (in ammeter mode) which has a
resistance of one ohm at point A. Recalculate the equivalent
resistance of the circuit.
b) What is the current flowing through the circuit now.
This is the current...
Please show how to get the answer to part b (10 pts) 6. The circuit shown...
Please show how to get the
answer to part b
(10 pts) 6. The circuit shown in the sketch consists of a battery with internal resistance r, a resistor R = 6.00 Ω and a switch. An ideal voltmeter V is connected to the terminals a and b of the battery. When the switch is open the voltmeter reads 4.22 V. When the switch is closed the voltmeter reads 4.08 V. Calculate swite a) the emf of the battery Ans....
A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as...
A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the "internal resistance", as shown in the figure(Figure 1) . A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there's no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V,...
for circuit shown in figure the battery has no appreciable
internal resistance. voltmeter and anmeter are ideal
2. (20 points, 5 points each) For the circuit shown in Figure, the battery has no appreciable internal resistance. Voltmeter and Ammeter are ideal. (a) What is the equivalent resistance of the circuit? 3 kn 2 kn R(series Rea» 3.734 3.21: 8-73 kn (b) What does the voltmeter read? parrele witn R4 . Vz4s τ24( 2 +): o.or7 (3.73 xu?): 47. 37lV (c)...
Consider the circuit shown below. All three batteries are ideal. The voltmeter and ammeter are also ideal. 7.00V 崇弓= 12.0V v) R 5.00 R2 6.00 Ω = 8.00 V A. What is the internal resistance of the batteries? B. What is the internal resistance of the voltmeter? C. what is the internal resistance of the ammeter? D. Based on your answers to questions A-C draw a simpler equivalent circuit (in the space above to the right of the original circuit)...
Hello,
I only need part D and E. Show all work for those two parts.
Note: the last question in part (e) asks for the I measured by
ammeter, and actual I1
In the figure below, R1-6.50 Ω and R2-R,-R4-26.0 Ω" The battery has an emf of ε-120 V. R1 Ry a.) How much energy is dissipated by all four resistors in one minute? Inserting a measurement device into a circuit to figure out what it's doing will actually affect...
*** Problem 3 When switch S in Figure 1 is open, the voltmeter V reads 3.08 V. When the switch is closed, the voltmeter reading drops to 2.97 V, and the ammeter reads 1.65 A. (Note: r is internal resistance of the battery.) fr Figure 1: Assume that the two meters are ideal so they don't affect the current in the circuit. a What is the EMF, V, produced by the battery? b) What is the liternal cesistance, r, of...
Problem 5 - variation of problem 30.64: Using the circuit shown in Figure 4, a) Find the reading in each ammeter and voltmeter just after switch S is closed b) Find the reading in each ammeter and voltmeter after S has been closed a very long time. c) At what time does the power in the inductor equal the power in the 75 Ω resistor? 100.0Ω 100.0Ω 15.0mH 50.0V 50.0Ω D 75.0Ω
Problem 5 - variation of problem 30.64: Using...
at 120 volts. a. the same b. less J BOX 2-POLE СВ 120/208 v 30, 4-W PANEL K 208 VOLTS DUCT 115.312 Line-to-Line HEATER ct heater contains two identically-rated ne two identically-rated heating elements that are connected as shown. ce rigure 115.312. If the leads of the voltmeter were moved to TI & 14, the r 3. See Figure 115.312. If the lea _ volts. a. 104 b. 120 d. O c. 208 4. See Figure 115.312. If the leads...
4) Given the circuit below. The voltage is 5 volts and each
resistor is 10 ohms. The current flowing through the circuit (when
measured by an ideal ammeter) is 1 amp.
a) Show current through the circuit is 1 A.
Next, assume you put a DMM (in ammeter mode) which has a
resistance of one ohm at point A. Recalculate the equivalent
resistance of the circuit.
b) What is the current flowing through the circuit now.
This is the current...
Please show how to get the
answer to part b
(10 pts) 6. The circuit shown in the sketch consists of a battery with internal resistance r, a resistor R = 6.00 Ω and a switch. An ideal voltmeter V is connected to the terminals a and b of the battery. When the switch is open the voltmeter reads 4.22 V. When the switch is closed the voltmeter reads 4.08 V. Calculate swite a) the emf of the battery Ans....
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