50 cm- -> 10 cm 8.0 A R = 1.0 x 10-3 2 A small circular loop of wire of radius 5 cm and resistance 1E-3 Q is centered inside a large circular loop of wire of radius 50 cm. The larger loop, which initially carries a current of 8 A, is cut and its current is reduced to zero over a time interval of 1E-6 s. Our goal will be to find the average current in the smaller loop during this time interval. (The magnetic field of the larger loop is approximately constant over the smaller loop.)

Taking R = 1.20 kΩ and ℰ = 470 V in the figure shown below, determine the magnitude and direction of the current in the horizontal wire between a and e. magnitude ?mA

An electric circuit has a battery with an EMF of 1.50 V. Its positive terminal is connected to its negative terminal by a copper wire in a circular loop having a radius of 0.500 m. Solve for the drift velocity in the wire if there is one free electron per copper atom. Detailed assumptions: - The size of the cell is negligible compared to the length of the circuit. Copper resistivity: p 1.80x10-00-m Copper density D- 8.96x10° kg-m kg-m-3 - Copper relative atomic mass: ma = 63.5 g/mol Express your answer in mm/s.

B/ If a conductor with current of 250 mA passing through it and converts of 20J of electrical energy into heat in 30 seconds. What the potential drop across the conductor? 1-250MA W=20 t=30 75