Consider the portion of a circuit shown in the figure. When no current is runnin
ID: 1324105 • Letter: C
Question
Consider the portion of a circuit shown in the figure. When no current is running, both compasses point north (direction shown by the pale arrows). When current runs in the circuit, the needle of compass 1 deflects as shown. The wire is on top of the compass.
Which statements are true about the direction of the needle of compass 2? Draw a sketch indicating its deflection.
It will point upward just as much as compass 1 points downward.It will deflect the same amount as compass 1.It will switch direction and point towards the lower left.It will deflect less than compass 1 since the current has been used up.It will not deflect at all.It will switch direction and point towards the upper left.
Which direction does the conventional current flow?
counterclockwiseclockwise
Consider the portion of a circuit shown in the figure. When no current is running, both compasses point north (direction shown by the pale arrows). When current runs in the circuit, the needle of compass 1 deflects as shown. The wire is on top of the compass. Which statements are true about the direction of the needle of compass 2? Draw a sketch indicating its deflection. It will point upward just as much as compass 1 points downward.It will deflect the same amount as compass 1.It will switch direction and point towards the lower left.It will deflect less than compass 1 since the current has been used up.It will not deflect at all.It will switch direction and point towards the upper left. Which direction does the conventional current flow? counterclockwiseclockwiseExplanation / Answer
As the current is in opposite direction over compass two, it will ne deflected upwards .The magnetic field is in the shape of concentric circles around the wire.
The result will be that it points towards the upper right
if all other things are equal then the amount of deflection of compass 1 downwards. This is because the current will be in the same in all parts of the wire.
so the current flows in the counter clock wise direction
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