Question

12. Solve the following example.
a. Heat energy is being produced in a
resistance in a circuit at the rate of
100 W. The current of 3 A is flowing
in the circuit. What must be the
value of the resistance?(Ans: 11 92)
b. Two tungsten bulbs of wattage
100 W and 60 W power work on
220 V potential difference. If they
are connected in parallel, how much
current will flow in the main con-
ductor?
(Ans: 0.72A)
c. Who will spend more electrical
energy? 500 W TV Set in 30 mins,
or 600 W heater in 20 mins?
(Ans: TV Set)
d. An electric iron of 1100 W is
operated for 2 hrs daily. What will
be the electrical consumption
expenses for that in the month of
April? (The electric company
charges Rs 5 per unit of energy).
(Ans: Rs 330)
​

Answer 1

Answer:

to

find the R=?

heat generated=100w

power! √Mutipli1

100=√Mutipli3

√=33.3√

now

√=IR

33.3=3R

R=11.1

=11

Answer 2

Answer:

ME MARATHA AHE.......JAY SHIVRAY

Explanation:

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