Physics · Current Electricity
In a simple electrical circuit consisting of a cell with zero internal resistance connected to a resistor R, an ammeter is placed to measure the total current. When a key (K) in parallel with half of the resistance is opened and closed, the readings of the ammeter are i1 and i2 respectively. If closing the key short-circuits half of the total resistance, then the ratio i1 × i2 is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 33 × 10
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1 × 2
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