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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSelf and mutual inductorEasy2 minPYQ_2020

PhysicsEasysingle choice

If the current in the toroidal solenoid increases uniformly from zero to $6.0 A$ in $3.0 μ s$ . Self-inductance of the toroidal solenoid is $40 μH$ . The magnitude of self-induced emf is

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Answer:

Solution:

Current in toroidal solenoid increases uniformly from $0$ to $6.0 A$ in $3.0 μ s$ .

Magnitude of self-induced emf is given by

$|ε| = L |\frac{d i}{d t}|$ [Symbols have usual meanings]

$= (40 \times 10^{- 6}) (\frac{6 - 0}{3.0 \times 10^{- 6}}) = 80 V$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Self and mutual inductor

⏱ 2mℹ️ Source: PYQ_2020

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