Electrical Energy and Power NEET Questions

Physics - Current Electricity

Electrical Energy and Power MCQ Questions


7.
A 60 W bulb operating at 220 V is used for 5 hours daily. The energy consumed in 30 days is:
A.
18 kWh
B.
6 kWh
C.
9 kWh
D.
60 kWh
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
C. 9 kWh
8.
Two 100 W bulbs (rated for 220 V) are connected in series across a 220 V supply. The power consumed by each bulb is:
A.
50 W
B.
100 W
C.
200 W
D.
25 W
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
D. 25 W
9.
Two 100 W bulbs (rated for 220 V) are connected in parallel across a 220 V supply. The total power consumed is:
A.
100 W
B.
50 W
C.
200 W
D.
400 W
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
C. 200 W
10.
A 60 W bulb and a 100 W bulb (both 220 V) are connected in series across 220 V. Which bulb glows brighter?
A.
Both equally
B.
Neither glows
C.
60 W bulb
D.
100 W bulb
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
C. 60 W bulb
11.
A 60 W bulb and a 100 W bulb (both 220 V) are connected in parallel across 220 V. Which bulb glows brighter?
A.
100 W bulb
B.
60 W bulb
C.
Neither glows
D.
Both equally
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
A. 100 W bulb
12.
The energy dissipated in a resistor of 5 ฮฉ carrying a current of 2 A for 1 minute is:
A.
20 J
B.
100 J
C.
1200 J
D.
600 J
๐Ÿ˜‘ View Answer Rough Work Error
ANSWER :
C. 1200 J