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A voltage , E=60 sin(314t), is applied a...

A voltage , `E=60 sin(314t)`, is applied across a resistor of `20 Omega`. What will be the reading of `I_(rms)`.
(a) in an ac ammeter?
(b) in an ordinary moving coil ammeter in series with the resistor?

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AI Generated Solution

To solve the problem, we need to find the root mean square (RMS) current, \( I_{rms} \), for both an AC ammeter and an ordinary moving coil ammeter when a voltage \( E = 60 \sin(314t) \) is applied across a resistor of \( 20 \, \Omega \). ### Step-by-Step Solution: 1. **Identify the Peak Voltage**: The given voltage can be compared with the standard form \( E = E_0 \sin(\omega t) \). Here, \( E_0 = 60 \, \text{V} \). ...
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