In the given circuit, Reading of ammeter is 1 A . If each of the 4 Ω resistor is replaced by 2 Ω resistor, the reading of ammeter will become nearly -

Question

In the given circuit, Reading of ammeter is 1 A . If each of the 4 Ω resistor is replaced by 2 Ω resistor, the reading of ammeter will become nearly -, 1 . 11 A, 1.25 A, 1.34 A, 1.68 A

MARKS App · Accepted Answer

If r A = Ammeter Resistance then ⇒ 1 A = 10 V R e q = 10 9 + r A ⇒ r A = 1 Ω When 4 Ω resistors are replaced by 2 Ω , then ⇒ I = 10 8 + 1 = 10 9 A = 1.11 A

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