Loading question session…
9 questions
What is the direction of the electric field around a positive point charge?
A circuit has a voltage of 12V and a resistance of 4Ω. What is the current flowing through the circuit according to Ohm's law?
Which of the following best describes electromagnetic induction?
If you increase the resistance in a closed circuit while keeping the voltage constant, what happens to the electric current and the electric field inside the conductor?
What happens to the magnetic field around a wire if the current flowing through it is reversed?
A coil moves through a magnetic field, inducing a current. According to Lenz's law, what is the direction of the induced current relative to the change in magnetic flux?
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Increasing the number of batteries in series in a circuit increases the total resistance of the circuit.
A changing electric field can produce a magnetic field just as a changing magnetic field can induce an electric field.