1
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
A conducting wire is stretched by applying a deforming force, so that its diameter decreases to $ 40 \% $ of original value. The percentage change in its resistance will be
2
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1
The power dissipated in the circuit shown in the figure $$40 \mathrm{~W}$$. The value of $$R$$ is.
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1
In the arrangement shown in figure, when the switch S2 is open, the galvanometer, shows no deflection for $$l$$ = 50 cm when the switch S2 is closed, the galvanometer shows no deflection for $$l$$ = 0.416 m. The internal resistance (r) of 6 V cell is
4
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1
A shunt is connected in parallel with a galvanometer. Why?
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