The potential difference
across a bulb is 3 V and the current
through it is 0.2 A.
Calculate the power.
Calculate the the energy transferred by the bulb in 10 seconds.

What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

The electric field inside a cell membrane is 8.0mn/c. what's the force on a singly charged ion in this field?