The magnetic flux through a coil varies with time t as shown in the diagram. Which graph best represents the variation of the e.m.f. E induced in the coil with time t ?

Question

The magnetic flux through a coil varies with time t as shown in the diagram. Which graph best represents the variation of the e.m.f. E induced in the coil with time t ? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

φ=A sin ω t ε=-(d φ/d t)=-A ω cos ω t

Q. The magnetic flux through a coil varies with time $t$ as shown in the diagram. Which graph best represents the variation of the e.m.f. $E$ induced in the coil with time $t ?$

$ϕ = A sin ω t$
$ε = - \frac{d ϕ}{d t} = - A ω cos ω t$

Q. The magnetic flux through a coil varies with time t as shown in the diagram. Which graph best represents the variation of the e.m.f. E induced in the coil with time t?

ϕ=Asinωt ε=−dtdϕ​=−Aωcosωt

Q. The magnetic flux through a coil varies with time $t$ as shown in the diagram. Which graph best represents the variation of the e.m.f. $E$ induced in the coil with time $t ?$

$ϕ = A sin ω t$
$ε = - \frac{d ϕ}{d t} = - A ω cos ω t$