wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In the circuit shown in the figure, when the switch is moved to ‘ON’ position,

A

bulb A will glow first

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

the bulb B will glow first

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

bulb C will glow first

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

all bulbs will glow together

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D

all bulbs will glow together


Explanation for Correct Option:

Option (D):

  1. In order for the bulbs to glow, the current must form a closed loop.
  2. The current must travel from the positive to negative terminal passing through all the bulbs along the way.
  3. Hence, all bulbs will glow together as soon as the current completes the circuit.

Explanation for Incorrect Option:

Option (A):

  1. When current enters only the bulb A, the circuit is not complete.
  2. Hence, bulb A will not glow first.

Option (B):

  1. When current enters only the bulb B, the circuit is not complete.
  2. Hence, bulb B will not glow first.

Option (C):

  1. When current enters only the bulb C, the circuit is not complete.
  2. Hence, bulb C will not glow first.

Hence, option (D) is the correct answer.


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Bulb Connected to an Electric Cell_bulb & wire
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon