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Q. 9

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 924

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Illustration

Short Answer

shows voltage and current graphs for a capacitor.

a. What is the emf frequency ?

b. What is the value of the capacitance ?

(a) The emf frequency is .

(b) The value of the capacitance is .

See the step by step solution

Step by Step Solution

Part(a) Step 1: Given information

We have been given that the voltage and current graphs for a capacitor in .

We need to find the emf frequency .

Part(a) Step 2: Simplify

As the graph for voltage repeats after .

Therefore, the Time period is .

We know the formula, (Let this equation be ())

Substitute the value of T in equation (),

On simplifying,

Part(b) Step 1: Given information

We have been given that the voltage and current graphs for a capacitor in .

We need to find the the value of the capacitance .

Part(b) Step 2: Simplify

Given values:

(from Part(a))

We know the formula, (Let this equation be ())

Divide both sides of equation () by ,

(Let this equation be ())

Substitute the values of in equation (),

On simplifying,

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