Blog

To say a circuit is dc is to say that current in the circuit

Two positively-charged plastic straws near each other tend to

Sound refraction depends on the speed of sound being

A coulomb of charge passing through a 6-V battery acquires

Ultrasonic sound that travels at 1530 m/s in ocean water is bounced off the ocean floor and returns to the ship above. If the round trip takes 3 s, the depth of the water is

A lamp rated 23W-120V means that it will deliver 23 W

The amount of energy given to each coulomb of charge flowing through a 12-V battery is

After taking a shower and stepping outside the shower stall, the chill you often feel is mainly due to

The magnetic field strength inside a current-carrying coil will be greater if the coil encloses

Compared to the wavelength of incident light, diffuse reflection occurs when the size of surface irregularities is