Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

An ammeter should have very low resistance

Options:

to show large deflection

to generate less heat

to protect the galvanometer from damage

so that it may not change the value of the actual current in the circuit

Correct Answer:

so that it may not change the value of the actual current in the circuit

Explanation:

The correct answer is Option (4) → so that it may not change the value of the actual current in the circuit

An ammeter is connected in series in a circuit. If its resistance is not very low, it will change the total resistance and thus change the actual current.

Final Answer: so that it may not change the value of the actual current in the circuit.