The resistance of an ammeter is 13 and its scale is graduated for a current up to 100 A…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
The resistance of an ammeter is 13 \(\Omega\) and its scale is graduated for a current up to 100 A. After an additional shunt has been connected to this ammeter, it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is:
- 2 \(\Omega\)
- 0.2 \(\Omega\)
- 2K \(\Omega\)
- 20 \(\Omega\)
Answer
(A) 2
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