which statements are true about moving the compass around the wire? check all that apply. with no current…

which statements are true about moving the compass around the wire? check all that apply. with no current, the compass needle will not move. if the light bulb is on, the compass needle will move. if the circuit is on, compass needle movement will indicate a dead battery. if current is flowing, the compass needle will not move unless the compass is touching the wire. changing the battery terminals will change the current flow and the compass will point differently

which statements are true about moving the compass around the wire? check all that apply. with no current, the compass needle will not move. if the light bulb is on, the compass needle will move. if the circuit is on, compass needle movement will indicate a dead battery. if current is flowing, the compass needle will not move unless the compass is touching the wire. changing the battery terminals will change the current flow and the compass will point differently

Answer

Brief Explanations:

  • When there is no current in the wire, there is no magnetic - field generated by the wire to affect the compass needle, so it won't move.
  • When the light - bulb is on, current is flowing through the wire. A current - carrying wire generates a magnetic field which can cause the compass needle to move.
  • A moving compass needle when the circuit is on indicates the presence of a magnetic field due to current flow, not a dead battery.
  • The compass needle will move even if it's not touching the wire as long as there is current in the wire and the compass is in the magnetic - field region of the wire.
  • Changing the battery terminals changes the direction of current flow. Since the direction of the magnetic field around the wire depends on the direction of current flow, the compass will point differently.

Answer:

With no current, the compass needle will not move; If the light bulb is on, the compass needle will move; Changing the battery terminals will change the current flow and the compass will point differently.