Figure 31-40 shows two square wire loops, the first containing a battery and var
ID: 1285749 • Letter: F
Question
Figure 31-40 shows two square wire loops, the first containing a battery and variable resistor. The resistor is initially at the midpoint of its resistance range. Should its resistance be lowered or raised in order to induce a clockwise current in the right-hand loop?
Figure 31-40 shows two square wire loops, the first containing a battery and variable resistor. The resistor is initially at the midpoint of its resistance range. Should its resistance be lowered or raised in order to induce a clockwise current in the right-hand loop?Explanation / Answer
when the resistance is increased, the current in the loop os decreases. the current in the loop is in clockwise direction.now if the current starts to reduce, the magnetic flux entering the other lopps starts to decrease and hence by lenz,s law, current is induced in clockwise direction to support the magnetic field
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