Physics · Electromagnetic Induction
The magnetic flux through a loop increases according to the relation φB(t) = 10t2 + 20t, where φB is in milliwebers and t is in seconds. The magnitude of current through a resistor of R = 2 Ω at t = 5 s is ________ mA.
- 180
- 260✓
- 340
- 420
Correct answer
60
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