A coil having N turn and resistance R Ω is connected with a galvanometer of resistance 4R…
Physics · NEET · NTA Exams — Electromagnetic Induction and Alternating Currents
A coil having N turn and resistance R Ω is connected with a galvanometer of resistance 4R Ω. This is moved in time t seconds from a magnetic field W1 weber to W2 weber. The induced current in the circuit is
- \(\frac{-\left(\mathrm{W}_{2}-\mathrm{W}_{1}\right)}{5 \mathrm{RNt}}\)
- \(\frac{-N\left(W_{2}-W_{1}\right)}{5 R t}\)
- \(\frac{-\left(\mathrm{W}_{2}-\mathrm{W}_{1}\right)}{\mathrm{RNt}}\)
- \(\frac{-N\left(W_{2}-W_{1}\right)}{R t}\)
Answer
(B) -N (W_ 2 -W_ 1 ) 5 R t
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