Physics 2220 – Module 09 Homework
01.
A potential difference of 0.050 V is developed across the 10-cm-long wire of the figure as it moves
though a magnetic field perpendicular to the page. What are the strength and direction (in or out) of the
magnetic field?
02.
The figure shows a 2.0-cm-diameter solenoid passing through the center of a 6.0-cm-diameter loop.
The magnetic field inside the solenoid is 0.20 T. What is the magnetic flux through the loop when it is
perpendicular to the solenoid and when it is tilted at a 60o angle?
03.
A solenoid is wound as shown in the figure.
(a)
(b)
04.
Is there an induced current as magnet 1 is moved away from the solenoid? If so, what is the
current direction through resistor R?
Is there an induced current as magnet 2 is moved away from the solenoid? If so, what is the
current direction through resistor R?
The current in the solenoid of the figure is increasing. The solenoid is surrounded by a conducting loop.
Is there current in the loop? If so, is the loop current cw or ccw?
05.
The loop in the figure is being pushed into a 0.20 T magnetic field at 50.0 m/s. The resistance in the
loop is 0.10 Ω. What are the direction and the magnitude of the current loop?
06.
The resistance of the loop in the figure is 0.20 Ω. Is the magnetic field strength increasing
or decreasing? At what rate (T/s)?
07.
The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 4.0 T/s. What is the
electric field strength inside the solenoid at a point:
08.
A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60 o away from
vertical increases from 0.50 T to 1.50 T in 0.60 s. What is the induced emf in the coil?
09.
A 10-cm-diameter parallel-plate capacitor has a 1.0 mm spacing. The electric field between the plates is
increasing at a rate of 1.0 × 106 V / m s. What is the magnetic field strength (a) On the axis – inside the
capacitor, (b) 3.0 cm from the axis – still inside the capacitor, and (c) 7.0 cm from the axis – outside the
capacitor
10.
A 5.0-cm-diameter parallel-plate capacitor has a 0.50 mm gap. What is the displacement current in the
capacitor if the potential difference across the capacitor is increasing at 500,000 V / s?