(20) A 500- μF capacitor is connected to a 100-V potential difference. How much energystored in the capacitor.C) 0.025JB) 2.5JA) 5JD) 1.25x10 JE) 0.5J(21) Find the resistance of a light bulb of a power of 10W when connected to 120V sourceB) 8300C) 120 QA) 14400D) 120E) 0.070aan by uniform electric field?

Given capacitance C= 500 uF Potential difference V = 100 V To find Energy stored in capacitor

(20) A 500- μF capacitor is connected to a 100-V potential difference. How much energy stored in the capacitor. A) 5J B) 2.5J C) 0.025J D) 1.25x10 J E) 0.5J the resistance of a light bulb of a power of 10W when connected to 120V source

(20) A 500- μF capacitor is connected to a 100-V potential difference. How much energy stored in the capacitor. A) 5J B) 2.5J C) 0.025J D) 1.25x10 J E) 0.5J the resistance of a light bulb of a power of 10W when connected to 120V source

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter8: Capacitance

Section: Chapter Questions

Problem 49P: Suppose that the capacitance of a variable capacitor can be manually changed from 100 pF to 800 pF...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

(20) A 500- μF capacitor is connected to a 100-V potential difference. How much energy
stored in the capacitor.
C) 0.025J
B) 2.5J
A) 5J
D) 1.25x10 J
E) 0.5J
(21) Find the resistance of a light bulb of a power of 10W when connected to 120V source
B) 8300
C) 120 Q
A) 14400
D) 120
E) 0.070
aan by uniform electric field?

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