A cardboard tube is wrapped with two windings of a insulated wire wound in opposite directions, as shown in Fig.
Question:
A cardboard tube is wrapped with two windings of a insulated wire wound in opposite directions, as shown in Fig. 29.34. Terminals a and b of winding A may be connected to a battery through a reversing switch. State whether the induced current in the resistor R is from left to right R or from right to left in the following circumstances:(a) The current in winding A is from a to b and is increasing;(b) The current in winding A is from b to a and is decreasing;(c) The current in winding A is from b to a and isincreasing.
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Step by Step Answer:
IDENTIFY Apply Lenzs law SET UP The field of the induced current is directed to oppose the change in …View the full answer
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Question Posted: October 18, 2010 04:42:05