CBSE 2024 · Region 3 · Set 3 · Q32

Draw a schematic diagram of a circuit consisting of a battery of four dry cells of $\displaystyle 1.5$ V each, a $\displaystyle 2 \Omega$ resistor, a $\displaystyle 6 \Omega$ resistor, $\displaystyle 16 \Omega$ resistor and a plug key all connected in series. Put an ammeter to measure the current in the circuit and a voltmeter across the $\displaystyle 16 \Omega$ resistor to measure potential difference across its two ends. Use Ohm's law to determine

(a)

ammeter reading, and

(b)

voltmeter reading when key is closed.

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