In the arrangement shown in figure there are two coils wound on a non- conducting cylindrical rod. Initially the key is not inserted in the circuit. Later the key is inserted and then removed shortly after.
There are two observation can be noted from the galvanometer reading . What is the name of phenomenon involve in the process?
Answers
Answer:
As the current in the first coil changes, the magnetic field associated with it also changes. Thus the magnetic field lines around the other coil also change. Hence the change in magnetic field lines associated with the secondary coil is the cause of induced electric current in it by the process of electromagnetic induction. Due to this reason, a momentary deflection in galvanometer will be observed which will die out soon when the current flowing through first coil attains steady state.
Due to similar phenomenon, a momentary deflection is again observed in opposite direction when key is removed as in this case current is decreasing in the circuit
Answer:
ᴛʜᴇʀᴇ ᴀʀᴇ ᴍᴏᴍᴇɴᴛᴀʀʏ ɢᴀʟᴠᴀɴᴏᴍᴇᴛᴇʀ ᴅᴇғʟᴇᴄᴛɪᴏɴs ᴛʜᴀᴛ ᴅɪᴇ ᴏᴜᴛ sʜᴏʀᴛʟʏ; ᴛʜᴇ ᴅᴇғʟᴇᴄᴛɪᴏɴs ᴀʀᴇ ɪɴ ᴏᴘᴘᴏsɪᴛᴇ ᴅɪʀᴇᴄᴛɪᴏɴs.