The current in a solenoid of 240 turns, having a length of 12 cm and a radius of 2 cm, changes at a rate of 0.8 A/s. Find the emf induced in it.
Amit Saxena , 10 Years ago
Grade upto college level
1 Answers
Kevin Nash
Last Activity: 10 Years ago
Sol. E = μ base 0 N^2 A/l dl/dt
= 4π x 10^-7 x (240)^2 x π(2x10^-2)^2/12 x 10^-2 x 0.8
= 4π x (24)^2 x π x 4 x 8/12 x 10^-8
= 60577.3824 x 10^-8 x 6 x 10^-4 V.
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