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A battery of emf 3V and internal resista...

A battery of emf 3V and internal resistance r is connected in series with a resistor of `55 Omega` through an ammeter of resistance `1 Omega`. The ammeter reads 50 mA. Draw the circuit diagram and calculate the value of r.

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To solve the problem step by step, we will follow these instructions: ### Step 1: Draw the Circuit Diagram We need to draw the circuit diagram based on the given information. The circuit consists of: - A battery with an emf of 3V. - An internal resistance \( r \) of the battery. - An external resistor of \( 55 \, \Omega \). - An ammeter with a resistance of \( 1 \, \Omega \). ...
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A battery of emf 3 volt and internal resistance r is connected in series with a resistor of 55 Omega through an ammeter of resistance 1 Omega . The ammeter reads 50 mA. Draw the circuit diagram and calculate the value of r.

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Knowledge Check

  • A battery of four cells in series each having an efm of 1.5 V and internal resistance 1Omega are connected in series with an ammeter, a coil of resistance 2Omega and a filament lamp. If the ammeter reads 0.5 A, the resistance of the filament lamp is

    A
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    B
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    C
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    D
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