Question
A student connect a moving coil voltmeter $\mathrm{V}$ and $\mathrm{Q}$ moving coil Ammeter $\mathrm{A}$ and resistor $\mathrm{R}$ as shown in figure? If the voltmeter reads 10 volt and the ammeter reads 2 Amp then $\mathrm{R}$ is(a) $=5 \Omega$(b) $>5 \Omega$(c) $<5 \Omega$(d) $10 \Omega$
Step 1
Step 1: We know that the voltage across a resistor in a circuit is given by Ohm's law, which states that $V = IR$, where $V$ is the voltage, $I$ is the current, and $R$ is the resistance. Show more…
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A candidate connects a moving coil voltmeter $V$ and a moving coil ammeter $A$ and resistor $R$ as shown in figure ? If the voltmeter reads $10 \mathrm{~V}$ and the ammeter reads $2 \mathrm{~A}$, then $R$ is (a) equal to $5 \Omega$ (b) greater than $5 \Omega$ (c) less than $5 \Omega$ (d) greater or less than $5 \Omega$ depending upon its material
Magnetic Effect of Current
Round 1
A candidate connects a moving coil ammeter $A$ and a moving coil voltmeter, $V$ and a resistance, $R$ as shown in figure. If, the voltmeter reads $20 \mathrm{~V}$ and the ammeter reads $4 \mathrm{~A}$, then $R$ is (a) equal to $5 \Omega$ (b) greater than $5 \Omega$ (c) less than $5 \Omega$ (d) greater or less than $5 \Omega$ depending upon its material
A candidate connects a moving coil voltmeter $V$, a moving coil ammeter $A$ and a resistor $R$ as shown in Fig. 6.73. If the voltmeter reads $20 \mathrm{~V}$ and the ammeter reads $4 \mathrm{~A}, R$ isa equal to $5 \Omega$ h greater than $5 \Omega$ c. less than $5 \Omega$ d. greater or less than $5 \Omega$ depending upon its material
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