Author: Anonymous

At what frequency will the peak voltage of a generator be 480 V, if its 500-turn, 8.3 cm diameter coil rotates in a 0.25 T field?

In the following circuit, the current through R4 is 0.5 A. Determine the current through R6.

An amoeba is 0.305 cm away from the 0.300 cm focal length objective lens of a microscope. An eyepiece with a 2.00 cm focal length is placed 20.0 cm from the objective. Where is the final image relative to the eyepiece and what is the nature of the image?

As shown in the figure, three charges q1 = 1.37 x 10-6 C, q2 = – 4.50 x 10-6 C and q3 = 1.37 x 10-6 C are fixed at the corners of a rectangle.  Find the electric potential energy of a fourth charge q4 = -1.20 x 10-3 C placed at corner O. 

A capacitor “with a charge 2Q” has the following actual charges on its two plates

The current in a charge-carrying conducting wire will decrease as the diameter of the wire is increased.

As shown in the figure below, a 7.50 mH inductor is connected in series with a 3.00 Ω resistor. Find the current 5.50 ms after the switch is moved to position 2 to disconnect the battery, if it is initially 10.0 A.

For the following circuit, determine the power supplied by the battery.

As shown in the figure below, a 7.50 mH inductor is connected in series with a 3.00 Ω resistor. Find the current 4.50 ms after the switch is moved to position 2 to disconnect the battery, if it is initially 10.0 A.

In the following circuit, the current through R4 is 0.5 A. Determine the current through R5.