Friday

December 19, 2014

December 19, 2014

Posted by **Steven** on Monday, July 29, 2013 at 5:38am.

r=bθ.

The spiral has N=100 turns and outer radius

R=10 cm (R is the distance from point O to point T). Note that in the figure below we show a spiral having only 3 turns. The circuit is placed in a homogeneous magnetic field perpendicular to the plane of the spiral. The time dependence of the magnetic field induction is given by

B=B_0 cos (ωt)

where

B_0=1 μT and ω=2×10^6 s−1

Determine, the amplitude of the emf in Volts induced in the circuit.

- Physics -
**Elena**, Monday, July 29, 2013 at 6:07amℰ = -N•dΦ/dt = -N•d(B₀Scosωt)/dt =

= NB₀Sωsinωt,

ℰ max= NB₀Sω,

Without the figure, I believe that S=πR² =>

ℰ max= NB₀πR²ω =

=100•10⁻⁶•3.14•0.1²•2•10⁶ =6.28 V

**Answer this Question**

**Related Questions**

pre calc.Math - Please help me any one of these please! Thank You to any one r=...

Calculus - Match each polar equation below to the best description. Each answer...

Calculus - Match each polar equation below to the best description. Each answer...

Calculus - Match each polar equation below to the best description. Each answer ...

CALCULAS - POLAR EQUATION OF INWARDLY SPIRALING SPIRAL

Physics- Elena please help! - A digital audio compact disc carries data along a...

Calc - A wire 100 inches long is to be cut into two pieces. One of the pieces ...

Calculus - A piece of wire 12 m long is cut into two pieces. One piece is bent ...

physics - A digital audio compact disc carries data along a continuous spiral ...

physics - A digital audio compact disc carries data along a continuous spiral ...