Q.

Magnetic flux through a circuit of resistance R changes by an amount ∆ϕ in a time ∆t. Total quantity of electric charge Q that passes any point in the circuit during the time ∆t is represented by :

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a

Q=1R∆ϕ∆t

b

Q=∆ϕR

c

Q=∆ϕ∆t

d

Q=R∆ϕ∆t

answer is B.

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Detailed Solution

I=eR=1Rdϕdt ⇒Q=∆ϕR
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Magnetic flux through a circuit of resistance R changes by an amount ∆ϕ in a time ∆t. Total quantity of electric charge Q that passes any point in the circuit during the time ∆t is represented by :