The magnetic flux linked with a coil is - 8t2 -3t - 5 Weber- The induced emf in fourth second will be

The correct option is C 67 V emf(t) = d ϕdt = 16t+3 emf(4)= 16 × 4 +3 = 67 V ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Magnetic Flux and Faraday's Law

The magnetic ...

Question

The magnetic flux linked with a coil is $ϕ \leq 8 t^{2} + 3 t + 5$ Weber. The induced emf in fourth second will be

16 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

139 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

67 V

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

145 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $67 V$
emf(t) = $\frac{d ϕ}{d t} = 16 t + 3$

emf(4)= $16 \times 4 + 3 = 67 V$

Suggest Corrections

Similar questions

Q. The magnetic flux linked with a coil, in webers, is given by the equation

ϕ = 8 t^{2} - 3 t + 5

. Then the magnitude of induced emf at

4

sec will be ..

Q. Magnetic flux linked with a coil is

ϕ = 5 t^{2} + 2 t + 3

, where t is second and

ϕ

is in weber. At time t =1 s, the value of induced emf is volt

The magnetic flux $ϕ$ (in weber) linked with a coil of resistance $10 Ω$ varies with time t (in second) as $ϕ = 8 t^{2} - 4 t + 1$ . The current induced in the coil at t = 0.1 sec is

Q. The magnetic flux linked with a coil satisfies the relation

ϕ = 4 t^{2} + 6 t + 9

Wb, where t is the time in second. The emf induced in the coil at

t = 2 s

Q. The magnetic flux linked with a coil is given by the equation

ϕ = 2 t^{2} - 8 t + 16

. what will be the magnitude of flux linked with the coil, when induced emf in the coil is zero?

Join BYJU'S Learning Program

The magnetic flux linked with a coil is ϕ≤8t2+3t+5 Weber. The induced emf in fourth second will be

The correct option is C 67Vemf(t) = dϕdt=16t+3emf(4)= 16×4+3=67V

The magnetic flux linked with a coil is $ϕ \leq 8 t^{2} + 3 t + 5$ Weber. The induced emf in fourth second will be

The correct option is C $67 V$
emf(t) = $\frac{d ϕ}{d t} = 16 t + 3$

emf(4)= $16 \times 4 + 3 = 67 V$