Question

electricity and magnetism worksheet multiple choice questions 1. what is the unit of electric current? a) volt b) ampere c) ohm d) coulomb 2. particle carries a negative charge? a) proton b) neutron c) electron d) photon 3. what is the direction of conventional current? a) from negative to positive b) from positive to negative c) both directions d) no direction 4. ohm’s law relates which quantities? a) voltage, current, resistance b) power, energy, time c) charge, voltage, power d) resistance, charge, current

Explanation:

1. The unit of electric current is the ampere. Volt is for voltage, ohm for resistance, and coulomb for charge.
2. Electrons carry a negative charge. Protons are positive, neutrons are neutral, and photons are neutral electromagnetic - field quanta.
3. Conventional current is defined as flowing from positive to negative.
4. Ohm's Law is \(V = IR\), relating voltage (V), current (I), and resistance (R).

Answer:

1. b) Ampere
2. c) Electron
3. b) From positive to negative
4. a) Voltage, Current, Resistance