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# An electronic flash unit for a camera contains a capacitor

## Problem 69P Chapter 20

Physics with MasteringPhysics | 4th Edition

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Problem 69P

An electronic flash unit for a camera contains a capacitor with a capacitance of 890 μF. When the unit is fully charged and ready for operation, the potential difference between the capacitor plates is 330 V. (a) What is the magnitude of the charge on each plate of the fully charged capacitor? (b) Find the energy stored in the "charged-up" flash unit.

Step-by-Step Solution:

Solution 69 P:

Step 1 of 2:-

a)

Here, we have to calculate the magnitude of charge in each plate of the capacitor.

The capacitance is,

.

The potential difference between the plates is,

.

We know that,

So, the charge stored in each plate of the capacitor will be 0.293 Coulomb.

Step 2 of 2

##### ISBN: 9780321541635

This full solution covers the following key subjects: unit, charged, capacitor, fully, Flash. This expansive textbook survival guide covers 32 chapters, and 3833 solutions. Physics with MasteringPhysics was written by and is associated to the ISBN: 9780321541635. This textbook survival guide was created for the textbook: Physics with MasteringPhysics, edition: 4th. The answer to “An electronic flash unit for a camera contains a capacitor with a capacitance of 890 ?F. When the unit is fully charged and ready for operation, the potential difference between the capacitor plates is 330 V. (a) What is the magnitude of the charge on each plate of the fully charged capacitor? (b) Find the energy stored in the "charged-up" flash unit.” is broken down into a number of easy to follow steps, and 62 words. Since the solution to 69P from 20 chapter was answered, more than 231 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 69P from chapter: 20 was answered by , our top Physics solution expert on 07/27/17, 10:59AM.

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