Physics-
General
Easy
Question
A 220V ac supply is connected between points A and B (Fig). What will be the potential difference V across the capacitor?
- 220V
- 110V
- 0V
- 220V
The correct answer is: 220V
Capacitor once gets charged upto maximum potential After that for any other lesser value of p.d across A and B diode is reverse biased and it does not allow charge to flow in opposite direction
From
volts
Related Questions to study
physics-
In the figure shown the potential drop across the series resistor is
In the figure shown the potential drop across the series resistor is
physics-General
physics-
Find the effective resistance between A and B
Find the effective resistance between A and B
physics-General
physics-
Two ideal junction diodes are connected as shown in the figure. A 3V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is
Two ideal junction diodes are connected as shown in the figure. A 3V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is
physics-General
physics-
VA and VB denote potentials of A and B, then the equivalent resistance between A and B in the adjoining circuit is (ideal diode)
VA and VB denote potentials of A and B, then the equivalent resistance between A and B in the adjoining circuit is (ideal diode)
physics-General
physics-
In the figures shown below
a)
b)
In the figures shown below
a)
b)
physics-General
physics-
If the lattice constant of this semiconductor is decreased, then which of the following is correct?
If the lattice constant of this semiconductor is decreased, then which of the following is correct?
physics-General
physics-
In a given circuit as shown the two input wave forms A and B are applied simultaneously
The resultant wave form at Y is
In a given circuit as shown the two input wave forms A and B are applied simultaneously
The resultant wave form at Y is
physics-General
physics-
The logic gate having an output of 1 is
i)
ii)
iii)
iv)
The logic gate having an output of 1 is
i)
ii)
iii)
iv)
physics-General
physics-
The combination of gates shown below yields
The combination of gates shown below yields
physics-General
physics-
In the following circuit the output Y becomes zero for the inputs
In the following circuit the output Y becomes zero for the inputs
physics-General
physics-
In the circuit below, A and B represent two inputs and C represents the output, the circuit represents
In the circuit below, A and B represent two inputs and C represents the output, the circuit represents
physics-General
physics-
In a transistor circuit shown here the base current is 35 A The value of the resistor is
In a transistor circuit shown here the base current is 35 A The value of the resistor is
physics-General
physics-
From the circuit shown below, the maximum and minimum values of zener diode current are
From the circuit shown below, the maximum and minimum values of zener diode current are
physics-General
physics-
In the figure shown, the potential drop across each capacitor is (assume diodes to be ideal)
In the figure shown, the potential drop across each capacitor is (assume diodes to be ideal)
physics-General
physics-
In the figure, the input is across terminals A and C and the output is across B and D. Then the output is
In the figure, the input is across terminals A and C and the output is across B and D. Then the output is
physics-General