the answer is A. for me
Answer:
fewer number of loops in the secondary coil.
Explanation:
The transformer equation states that:
where
Vp is the voltage in the primary coil
Np is the number of loops in the primary coil
Vs is the emf induced in the secondary coil
Ns is the number of loops in the secondary coil
Solving the expression for Vs,
Therefore, we see that in order to reduce the emf in the secondary coil, we can reduce Ns, the number of loops in the secondary coil. So the correct option is
fewer number of loops in the secondary coil.
The correct choice is
B. sublimation, then condensation
Sublimation is the name of the process where a solid directly converts into gas on heating. on heating solid crystals of iodine directly change into gas. hence this is sublimation.
condensation is the process where gas is converted into liquid on cooling.
here iodine gas is being converted into droplets on reducing the temperature. hence this is condensation.