Question

voltmeter has a resistance 30 ohm what will be its reading when it is connected across the cell of emf 2 v having internal resistance 10 ohms​

Answer 1

Answer:

Given: R = (00 Q, r = 20 0, E = 2 V To find: Reading of voltmeter (V)

Formula: V = E-In

Calculation: Current through the circuit is

given by

I = = 100 20 = 20 E R+r

I 60 A

From formula,

V = 2 – ( x 20203333

.. V = (.669 V

The reading on the voltmeter is (.669 V

Explanation:

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