Look at the figure given below and answer the question based on it.

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings.

The deflection of the compass needle decreases as the compass is moved away from the copper wire. This tells us that?

The magnetic field strength increases as the distance from the wire increases

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The magnetic field strength decreases as the distance from the wire increases

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There is no change in the magnetic field strength

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The magnetic field alters its direction as distance from the wire increases

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Solution

The correct option is B
The magnetic field strength decreases as the distance from the wire increases

Magnetic field strength decreases as the distance from the current carrying conductor (or magnet) increases. As magnetic field strength decreases, the deflection of the compass needle decreases.

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Similar questions

Look at the figure given below and answer the question based on it.

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings

The deflection of the compass needle decreases as the compass is moved away from the copper wire. This tells that:

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings

The deflection in the compass needle decreases as the compass is moved away from the copper wire. This tells that:

Q. Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire flows as shown.

What happens to a compass at the point P, if the current through the circuit is increased? (Ignore the magnetic field of the Earth.)

Look at the figure given below and answer the question based on it.

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings.

What happens to a compass at a particular point near the copper wire if the current through the circuit is increased?

Look at the figure given below and answer the question based on that.

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings

What happens to a compass at a particular point near the copper wire if the resistance of the circuit is increased?

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The correct option is B The magnetic field strength decreases as the distance from the wire increases Magnetic field strength decreases as the distance from the current carrying conductor (or magnet) increases. As magnetic field strength decreases, the deflection of the compass needle decreases.

The correct option is B
The magnetic field strength decreases as the distance from the wire increases

Magnetic field strength decreases as the distance from the current carrying conductor (or magnet) increases. As magnetic field strength decreases, the deflection of the compass needle decreases.