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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A carboard tube is wrapped with two winding of insulated wire wound in opposite directions as shown in Fig. 3.24. Terminal aandb of winding A may be connected to a battery through a reversing switch. State whether the induced current in the resistor R from left to right or from right to left in the following cicumstances.

A carboard tube is wrapped with two winding of insulated wire wound in opposite directions as shown in Fig. 3.24. Terminal aandb of winding A may be connected to a battery through a reversing switch. State whether the induced current in the resistor R from left to right or from right to left in the following cicumstances.

is so that the magnet gets demagnetized when inside the solenoid The coercitivity of a small magnet where the ferromagnet gets demagnetized is 3× 10^3 A/m. The current required to be passed in a solenoid of length 10cm and number of turns 100