Question

A 4.00-cm slide wire moves outward with a speed of 100 m/s in a 1.00 T magnetic field. See Figure 19.

At the instant that the circuit forms a 4.00 cm

Answer #1

**induced emf is defiend as the rate of change of magnetic
flux**

**in mathematical form,**

**induced emf e = NAdB/dt or
NABW**

**where A = area**

**N = no. of tunrs**

**W = angular frequency**

**dB/dt = rate of change of amgnetic flux**

**induced current i = e/R**

**Where R = resisatnce**

**so here we apply**

**#A: induced emf e = lvB = 0.04 * 100 *
1 = 4 volts**

**induced current i = emf/R**

**i = 4/0.010**

**i = 400 AMps**

**PD = emf e = 4 Volts**

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https://imgur.com/a/0ZwJG

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