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Construct the circuit as in the figure. Observe the intensity of light when switch in the circuit is turn on.a. What change is observed when 6V battery is connected instead of 6V AC in the circuit?b. What change will occur in magnetic flux when 6V battery is connected to the circuit and 6V AC connected to the circuit?c. What is the peculiarity of the induced emf when AC source is connected in the circuit instead of DC.d. What is the name of this induced emf? e. Name the phenomenon caused to reduce the intensity of light in the circuit. f. What is the change in intensity of light will be occurred when soft iron core is inserted into the inductor?g. What is the reason for the change in the intensity of light? h. What is the phenomenon which caused to glow the LED? i. Explain the phenomenon. |
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Answer» a. Intensity of light decreases b. When 6V AC is given, there is a change in the magnetic flux linked with the solenoid. Due to the change in flux, an induced emf is developed. c. Emf will be in the opposite direction. d. Back emf. e. Self Induction. f. Intensity of light decreases. g. Change in flux increased. h. Mutual Induction. i. When the strength or direction of the current in one coil changes, the magnetic flux around it changes. As a result, an emf is induced in the secondary coil. This phenomenon is called Mutual induction. |
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