A 95-W lightbulb connected to a 120-V source experiences a voltage surge that produces 139 V for a moment. By what percentage does its power output increase? Assume its resistance does not change

Q: During a physics demonstration, a fully charged 98 µF capacitor discharges through a 125 Ω resistor.…

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Q: A certain battery has a 12.0-V emf and an internal resistance of 0.100 Ω . What power does the…

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Q: At time t= 0, an RC circuit consists of a 18.5-V emf device, a 68.0-0 resistor, and a 140.0-μF…

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Q: 1000 V 후 3000 $2 10.5 HF

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Q: A resistor with resistance R is connected to a battery that has emf 12.0 V and internal resistance r…

A: Given data,  ε=12 Vr=0.4 ohmP=80 Wwe know, P=I2R-------(1)where, I=εR+r-------(2)Putting value of I…

Q: One wire in a high-voltage transmission line carries 1 000 A starting at 560 kV for a distance of…

A: P=I2R

Q: At time t = 0, an RC circuit consists of a 20.0-V emf device, a 50.0-2 resistor, and a 146.0-pF…

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Q: An RC circuit includes a 2-k N resistor, a battery with emf of 12.0 V and a capacitor. At t = 0 the…

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Q: A defibrillator is designed to pass a large current through a patient’s torso in order to stop…

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Q: A 43 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Given Data: The resistance of a battery is, R=43 Ω The voltage of a battery is, V=12 V   The…

Q: All of the electrical outlets in a room are connected in a single parallel circuit. The circuit is…

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Q: 120 W light bulb connected to a 120 V source experiences voltage source that produces 180 V for a…

A: Given that,The power (Pi) = 120 (W)Voltage (V) = 120 (V)Here we need to find by what percentage does…

Q: A circuit in a student’s room has a 15 A circuit breaker. One evening, she plugs in a computer (240…

A: In the household wiring, the electrical instruments are connected in parallel. Thus, in the room,…

Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…

A: Given that, Voltage, V= 4 VoltCurrent, I=4 mA=4×10-3 A

Q: A 0.7-F capacitor is connected in series with a 9-ohm resistor. If the connection is energized from…

A: Capacitance of capacitor C = 0.7 F Resistance R=9 Ω Voltage V = 11 V Initial charge Q0=175 mC =…

Q: Two resistors have resistance R1 and R2 where R1 = 4.5R2. When configured in series and connected to…

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Q: the heating element on an electric heater dissipates 4.0 x 10^2 watts of power when connected to a…

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Q: A 3.50 μμF capacitor that is initially uncharged is connected in series with a 7.60 kΩ resistor and…

A: Given, Capacitor having capacitance C = 3.50 μF Resistor R = 7.60 kΩ Source having EMF E = 185 V…

Q: A combination of three resistors R₁, R2, and R3 in series is connected across a voltage source V7.…

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Q: Two 75 W (120V) light bulbs are wired in series, then the combination is connected to a 120 V power…

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Q: A 570 Ω resistor, an uncharged 1.1 μF capacitor, and a 6.53 V emf are connected in series. (c) What…

A: Given data The magnitude of the resistance is given as R=570 Ω. The magnitude of the capacitance is…

Q: Look at a circuit made up of a resistor, a battery, a capacitor, and a switch. Take the time…

A: Given : τ = 3.12 seconds I = 420 mA = 0.420 A V = 12 V

Q: A 15.0-Ω resistor and a 40.0-Ω resistor in series are connected to a 120-V dc source. (a) What is…

A: I=VR1+R2=120 V15.0 Ω+40.0 Ω=2.18 A Since the resistors are connected in series, the current through…

Q: A heart defibrillator being used on a pation has an RC time constant of 15 ms due to the resistance…

A: a.  1.579Ω b. 0.0398 secExplanation:

Q: An 1290 W toaster and an 803 W microwave oven are connected in parallel to the same 30.0 A, 120 V…

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Q: The figure shows the circuit of a flashing lamp, like those attached to barrels at highway…

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Q: The current in a 0.25 F capacitor is i = 4sen2t A. Calculate the voltage, charge, instantaneous…

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Q: A 100V source is connected in series to a 5k Ohm resistor and to a 6µF capacitor. At the moment that…

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Q: When plugged into a 120 V standard outlet, a current of 2.0 A flows through a string of tree lights…

A: The supplied voltage is The current flow is The number of bulbs in series is

Q: The starter in your car is a device of fixed resistance that is designed to operate at a power of…

A: Given: The power at which the starter is designed to operate is 847 W. The voltage of the car…

Q: A household circuit operating at 240 V has four appliances connected in Parallel. The resistances of…

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Q: In an old house, the wires leading to a 120 V outlet have a total resistance of 0.45 Ω . When you…

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Q: A capacitor with capacitance 10.8 μF in an RC circuit is initially charged up to a voltage of Vo =…

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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.