which and all bulb will glow

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Solution

The correct options are
A
1

B
2

if p region of diode is connected to postive terminal of battery then diode is forward biased.if n region of diode is connected to positive terminal battery then it is reverse biased. forward biased diode has very low resistance .diodes in figure 1 and figure 2 are forward biased . thus bulb 1 and bulb 2 will glow.

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Similar questions

Two bulbs A and B are connected through switches $S_{1}$ and $S_{2}$ as shown. Which of the following statement is true:

B_{1}

B_{2}

Question 3

Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’

(a) bulb C will glow first

(b) bulb B and C will glow simultaneously and bulb A will glow after some time

(d) the bulbs will glow in the order A, B and C

Question 5

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

(a) the bulb A will glow first.

(b) the bulb B will glow first.

(d) all bulbs will glow together.

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