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A perfect voltmeter is connected between C & D gives reading 140 V. When we replace it with an ideal ammeter, its reading is 21 A. Now, we connect a resistor r between C & D. If the current I (in A) is flowing through this r between C & D. Find the value of I/4

A perfect voltmeter is connected between C & D gives reading 140 V. When we replace it with an ideal ammeter, its reading is 21 A. Now, we connect a resistor r between C & D. If the current I (in A) is flowing through this r between C & D. Find the value of I/4
 

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Grade:12

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