Homework Answers
Voltage, V = IR
V = 200 x 10^-6 x 75000
V = 15 V
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(cdepends on both resistance und D. does not depend on resistance and potential difference 3. The...
Labd 2: Ohm's law and the Measurement of Resistance 1. The voltage drop on a carbon...
Labd 2: Ohm's law and the Measurement of Resistance 1. The voltage drop on a carbon resistor is measured to be 5 Volt and the current flowing in the circuit is 400mA. What is the resistance of this carbon resistor? (5) 2. The current in a wire (5) A. depends only on the potential difference applied B. depends only on the resistance of the wire C. depends on both resistance and potential difference D. does not depend on resistance and...
a) Find the equivalent resistance between points a and b in Figure 1 (R = 17.00 22). If a potential difference of...
a) Find the equivalent resistance between points a and b in Figure 1 (R = 17.00 22). If a potential difference of 340 V is applied between points a and b, calculate the current in each resistor. What is the potential difference a cross each resistance? 2. The ammeter shown in the figure 2 below reads 2.28 A. Find 11, 12, and using Kirchhoff's rules. 3. An uncharged capacitor and a resistor are connected in series to a battery, where...
Given that a certain galvanometer has an internal resistance of 254 Ω and can handle a...
Given that a certain galvanometer has an internal resistance of 254 Ω and can handle a maximum current of 250 μA, design an ammeter capable of reading at full-scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in length and...
1. Given that a certain galvanometer has an internal resistance of 254 N and can handle...
1. Given that a certain galvanometer has an internal resistance of 254 N and can handle a maximum current of 250 A, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
1. Given that a certain galvanometer has an internal resistance of 254 1 and can handle...
1. Given that a certain galvanometer has an internal resistance of 254 1 and can handle a maximum current of 250 HA, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical...
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical potentials from 0 volts to 10.0 volts. A student connects an ammeter in series with the power supply and resistor so that he can record the current flowing through the system. He produces the chart shown below. Potential Difference vs. Current M Potential Diff (V) 1.0 0.01 0.02 0.03 0.04 2.0 Current (A) 0.008 0.018 0.026 0.035 0.047 Current (A) 4.0 a. Label the...
1. Given that a certain galvanometer has an internal resistance of 254 12 and can handle...
1. Given that a certain galvanometer has an internal resistance of 254 12 and can handle a maximum current of 250 UA, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
QUESTION 3 Assume you have a capacitor with an initial potential difference of 100 V that...
QUESTION 3 Assume you have a capacitor with an initial potential difference of 100 V that is discharged through a resistor when a switch between them is closed at t=0. Att= 10.0s, the potential difference across the capacitor is 1.00 V and its time constant RC is 2.17 sec. What is the potential difference V(t) across the capacitor at t= 17.0 s? 0.0396 V 0.0309 V 0.0456 V 0.0412 V QUESTION 4 The capacitance (size) of the capacitor is a...
You get a summer job in a company that builds circuits for medical devices. You are asked to evaluate prospective design...
You get a summer job in a company that builds circuits for medical devices. You are asked to evaluate prospective designs for a defibrillator, which supplies a potential difference between 200-2000 V to a pair of paddles to be used on a patient. The defibrillator works by charging a capacitor bank, which is connected to a resistor and the paddles in a series circuit. The current delivered to the paddles needs to be such that the patient receives no more...
A typical overhead power line is bare wire at a high potential relative to ground. A...
A typical overhead power line is bare wire at a high potential relative to ground. A local line receives power at 3300 V with respect to the ground; the delivered voltage is slightly less, due to resistance loss in the wire. The wire is 10 km long, carries a current of 60 A, and has a resistance (made small to limit power loss) of 2.5 Ω. 1) Approximately how much power is lost due to the resistance of the wire?...
Labd 2: Ohm's law and the Measurement of Resistance 1. The voltage drop on a carbon resistor is measured to be 5 Volt and the current flowing in the circuit is 400mA. What is the resistance of this carbon resistor? (5) 2. The current in a wire (5) A. depends only on the potential difference applied B. depends only on the resistance of the wire C. depends on both resistance and potential difference D. does not depend on resistance and...
a) Find the equivalent resistance between points a and b in Figure 1 (R = 17.00 22). If a potential difference of 340 V is applied between points a and b, calculate the current in each resistor. What is the potential difference a cross each resistance? 2. The ammeter shown in the figure 2 below reads 2.28 A. Find 11, 12, and using Kirchhoff's rules. 3. An uncharged capacitor and a resistor are connected in series to a battery, where...
1. Given that a certain galvanometer has an internal resistance of 254 N and can handle a maximum current of 250 A, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
1. Given that a certain galvanometer has an internal resistance of 254 1 and can handle a maximum current of 250 HA, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical potentials from 0 volts to 10.0 volts. A student connects an ammeter in series with the power supply and resistor so that he can record the current flowing through the system. He produces the chart shown below. Potential Difference vs. Current M Potential Diff (V) 1.0 0.01 0.02 0.03 0.04 2.0 Current (A) 0.008 0.018 0.026 0.035 0.047 Current (A) 4.0 a. Label the...
1. Given that a certain galvanometer has an internal resistance of 254 12 and can handle a maximum current of 250 UA, design an ammeter capable of reading at full- scale deflection (the maximum current without burning up the meter) 10 A and a voltmeter capable of reading at full-scale deflection 10 V. Assume that the space available in the meter for the shunt (for the ammeter) or limiting (for the voltmeter) resistor is no more than 5 mm in...
QUESTION 3 Assume you have a capacitor with an initial potential difference of 100 V that is discharged through a resistor when a switch between them is closed at t=0. Att= 10.0s, the potential difference across the capacitor is 1.00 V and its time constant RC is 2.17 sec. What is the potential difference V(t) across the capacitor at t= 17.0 s? 0.0396 V 0.0309 V 0.0456 V 0.0412 V QUESTION 4 The capacitance (size) of the capacitor is a...
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