Question

Find the resistance of a bulb which marked as 220 V - 100 W.
Define resistance of a wire. Write the expression for equivalent resistance of two
resistors R, and R, when they are connected in parallel and in series. In which case
do you get an equivalent resistance less than each of the given resistances. Write the
unit of the resistivity.
1+2+1455
1.
2.
Define one volt.
A 1.0 m long wire has Imm diameter and resistance of 712. Calculate the resistivity
of the material.
1292
and B of
1232
Find the effective value of resistance beiween A and B of the given circuit, when
a) switch S is open
b) switch S is closed.
CHAPTER 9
MAGNETISM
Q1.
Draw an illustrate diagram of an electric motor. Describe its construction and
working
1+425
Q1.
Q2.
Give two properties of magnetic lines of force.
A current carrying solenoid can be compared to a bar magnet. Give any two​

Answer 1

Answer:

1 . 484 _/\_ is the resistance in this case