Question

Which of the following electrical components are important in determining the amount of electric current through an electric circuit?

• A. Rheostat
• B. Ammeter
• C. Resistor
• D. Galvanometer

Answer 1

Answer: (A), (C)

The correct options are
A Rheostat
C Resistor

A rheostat is an electrical instrument used to control the current by varying the resistance.
A resistor is an electrical component that obstructs the flow of electric current in a circuit. The resistor's ability to oppose the flow of current is called resistance.
An ammeter is a measuring instrument used to measure the current in a circuit. A galvanometer is an instrument used for indicating the electric current in a circuit. They have very little impact on the current in the circuit.