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Problem 8 Your laptop consumes 2.0 Watts of power operating on its 10V Battery a) Find...
Two battery chargers (one for your laptop and the other for your phone) are plugged in...
Two battery chargers (one for your laptop and the other for your phone) are plugged in at the same powerpoint. a) If the phone charger consumes 30 W of electrical power when operating, how much current would flow through it when connected to a household supply? (Show your working and explain your answer.) b) Explain how the laptop battery charger would be able to provide electrical safety to the operator in case of a short circuit. The laptop charger has...
Two battery chargers (one for your laptop and the other for your phone) are plugged in...
Two battery chargers (one for your laptop and the other for your phone) are plugged in at the same powerpoint. a) If the phone charger consumes 30 W of electrical power when operating, how much current would flow through it when connected to a household supply? (Show your working and explain your answer.) b) Explain how the laptop battery charger would be able to provide electrical safety to the operator in case of a short circuit. The laptop charger has...
A 1F capacitor is charged to full capacity by a 10V battery and disconnected. The capacitor...
A 1F capacitor is charged to full capacity by a 10V battery and disconnected. The capacitor is then discharged through a light bulb. Determine the initial brightness of the bulb (in watts) and find the time it takes for the bulb to fall to 1/e? of it's initial brightness for the bulb specifications given below. Assume that the brightness is equivalent to the power dissipated and neglect the temperature dependence of the bulb resistance. a. 10W at 100V b. 100W...
Question 2 Part 1: A 10022 resistance is directly switched on across a 10V battery. What...
Question 2 Part 1: A 10022 resistance is directly switched on across a 10V battery. What is the current through the resistor? How much is the power consumed by the resistor? Also find the energy consumed by the resistor in 5 seconds? (2 Points) Part 2: Find the equivalent resistance R across x-y in each of the following circuits. (8 Points) ta am om 2 rn yo yo Figure 3 Figure 4 Figure 5 2 W 19 Figure 6
Question #1 A low-power microprocessor consumes 5 mA at DC. How many electrons flow through the...
Question #1 A low-power microprocessor consumes 5 mA at DC. How many electrons flow through the power wiring per second? Question #2 The amount of charge per time, (t), is given as t2 + 5t - 3 C, find the current, i(t). Question #3 The current as a function of time, i(t), is given as 500cos(at) A. Find the net charge from t=0 to t= 2 seconds. Question #4 You are jumping your car with a friend's whose battery is...
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its...
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its terminals are connected to a load resistance of 3.00 . Circuit diagram of a source of emf (in this case, a battery), of internal resistance r, connected to an external resistor of resistance R. for ning R (a) Find the current in the circuit and the terminal voltage of the battery. SOLUTION Conceptualize Study the figure, which shows a circuit consistent with the problem...
12. Find the current in a circuit if the power is 500 W (watts) and the...
12. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two decimal places p Use the formula I = O A. 0.05 A B.0.22 A C. 4.47 A D. 20 A 13. Solve the expression for x: (4 2) (x - 2) 4x - 8 A.x 0 B.x-2 c. x 6/s D. x 2 14. Solve the following equation for 2 /4y 3 11. А....
1. What is the emf of a battery that increases the electric potential energy of 0.050...
1. What is the emf of a battery that increases the electric potential energy of 0.050 C of charge by 0.60 J as it moves from the negative to the positive terminal? 2 .A thermistor is a device whose resistance varies with temperature. At 20∘C a thermistor's resistance is 10.0 kΩ. When connected to a 1.2 V battery, the current through the thermistor increases by 20 μA as the temperature increases to 30∘C. What is the thermistor's resistance at this...
R3 Figure 18.55 Problem 18.79. (c18p79) Three resistors are joined together across a 30 V battery...
R3 Figure 18.55 Problem 18.79. (c18p79) Three resistors are joined together across a 30 V battery (see the figure). The voltage drop across resistor R is 7.734 V, the current iz through resistor R2 is 0.259 A, and the power dissipated in resistor R3 is 4.921 W. What is the value of R3? Submit Answer Tries 0/10 What is the current i, through resistor Rı? Submit Answer Tries 0/10 What is the power P2 dissipated in resistor Rz? Submit Answer...
I need the work for these to compare and check mine with! Problem: An air filled parallel plate capacitor has plates of area 2.3 cm separated by 1.5 mm. The capacitor is connected to a 12 V battery 3...
I need the work for these to compare and check mine with!
Problem: An air filled parallel plate capacitor has plates of area 2.3 cm separated by 1.5 mm. The capacitor is connected to a 12 V battery 3- (a): Find the value of its capacitance (b): What is the charge on the capacitor? (c): What is the magnitude of the uniform electric field between the plates? 4- Problem: The filament of a light bulb has 1.67 C charge flowing...
A 1F capacitor is charged to full capacity by a 10V battery and disconnected. The capacitor is then discharged through a light bulb. Determine the initial brightness of the bulb (in watts) and find the time it takes for the bulb to fall to 1/e? of it's initial brightness for the bulb specifications given below. Assume that the brightness is equivalent to the power dissipated and neglect the temperature dependence of the bulb resistance. a. 10W at 100V b. 100W...
Question 2 Part 1: A 10022 resistance is directly switched on across a 10V battery. What is the current through the resistor? How much is the power consumed by the resistor? Also find the energy consumed by the resistor in 5 seconds? (2 Points) Part 2: Find the equivalent resistance R across x-y in each of the following circuits. (8 Points) ta am om 2 rn yo yo Figure 3 Figure 4 Figure 5 2 W 19 Figure 6
Question #1 A low-power microprocessor consumes 5 mA at DC. How many electrons flow through the power wiring per second? Question #2 The amount of charge per time, (t), is given as t2 + 5t - 3 C, find the current, i(t). Question #3 The current as a function of time, i(t), is given as 500cos(at) A. Find the net charge from t=0 to t= 2 seconds. Question #4 You are jumping your car with a friend's whose battery is...
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its terminals are connected to a load resistance of 3.00 . Circuit diagram of a source of emf (in this case, a battery), of internal resistance r, connected to an external resistor of resistance R. for ning R (a) Find the current in the circuit and the terminal voltage of the battery. SOLUTION Conceptualize Study the figure, which shows a circuit consistent with the problem...
12. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two decimal places p Use the formula I = O A. 0.05 A B.0.22 A C. 4.47 A D. 20 A 13. Solve the expression for x: (4 2) (x - 2) 4x - 8 A.x 0 B.x-2 c. x 6/s D. x 2 14. Solve the following equation for 2 /4y 3 11. А....
R3 Figure 18.55 Problem 18.79. (c18p79) Three resistors are joined together across a 30 V battery (see the figure). The voltage drop across resistor R is 7.734 V, the current iz through resistor R2 is 0.259 A, and the power dissipated in resistor R3 is 4.921 W. What is the value of R3? Submit Answer Tries 0/10 What is the current i, through resistor Rı? Submit Answer Tries 0/10 What is the power P2 dissipated in resistor Rz? Submit Answer...
I need the work for these to compare and check mine with!
Problem: An air filled parallel plate capacitor has plates of area 2.3 cm separated by 1.5 mm. The capacitor is connected to a 12 V battery 3- (a): Find the value of its capacitance (b): What is the charge on the capacitor? (c): What is the magnitude of the uniform electric field between the plates? 4- Problem: The filament of a light bulb has 1.67 C charge flowing...
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