How to Make the Needle on an Ammeter Point to the Left
What change would cause the needle on the ammeter to point to the left of the zero?
A. making the wire thicker
B. adding coils to the wire
C. disconnecting the wire from one end of the ammeter
D. moving the wire downward through the magnetic field
Answer:
D: moving the wire downward through the magnetic field
Explanation:
A change which would cause the needle on the ammeter to point to the left of the zero is: D. moving the wire downward through the magnetic field.
An ammeter can be defined as an instrument that is designed and developed for the measurement of either a direct current (DC) or alternating current (AC) in an electric circuit.
Generally, a needle (pointer) that is attached to a magnetic coil moves in opposite direction (deflects) for each direction of current flowing through an ammeter, especially due to the polarized magnetic field.
In conclusion, a change which would cause the needle on the ammeter to point to the left of the zero is moving the wire downward through the magnetic field.