MCQ
To convert a moving coil galvanometer into voltmeter
- Aa low resistor is needed to join in parallel
- Ba low resistor is needed to join in series
- Ca high resistor is needed to join in parallel
- ✓a high resistor is needed to join in series
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$\overrightarrow{ B }( x , t )=\left[1.2 \times 10^{-7} \sin \left(0.5 \times 10^{3} x +1.5 \times 10^{11} t \right) \hat{ k }\right] T$
The instantaneous electric field $\overrightarrow{ E }$ corresponding to $\overrightarrow{ B }$ is : (speed of light $\left.c=3 \times 10^{8} ms ^{-1}\right)$