Physics-
General
Easy
Question
Truth table for system of four NAND gates as shown in figure is :
The correct answer is:
Related Questions to study
Physics-
A p-n junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit. 
The current (I) in the resistor (R) can be shown by:
A p-n junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit. The current (I) in the resistor (R) can be shown by:
Physics-General
Physics-
The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct out put waveform.
The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct out put waveform.
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-
If in p-n junction diode, a square input signal of 10 V is applied as shown. Then the output signal across R L will be
If in p-n junction diode, a square input signal of 10 V is applied as shown. Then the output signal across R L will be
Physics-General
Physics-
The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
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-
Statement-1 : The temperature coefficient of resistance is positive for metals and negative for P-type semiconductor.
Statement-2 : The effective charge carriers in metals are negatively charged whereas in P-type semiconductor they are positively charged.
Statement-1 : The temperature coefficient of resistance is positive for metals and negative for P-type semiconductor.
Statement-2 : The effective charge carriers in metals are negatively charged whereas in P-type semiconductor they are positively charged.
Physics-General
Physics-
The electrical circuits used to get smooth d.c. output from a rectified circuit is called
The electrical circuits used to get smooth d.c. output from a rectified circuit is called
Physics-General
Physics-
The current flowing through the zener diode in fig. is-
The current flowing through the zener diode in fig. is-
Physics-General
Physics-
Two junction diodes one of germanium (Ge) and other of silicon (Si) are connected as shown in figure to a battery of emf 12 V and a load resistance 10 k 
. The germanium diode conducts at 0.3 V and silicon diode at 0.7 V. When a current flows in the circuit, the potential of terminal Y will be-
Two junction diodes one of germanium (Ge) and other of silicon (Si) are connected as shown in figure to a battery of emf 12 V and a load resistance 10 k . The germanium diode conducts at 0.3 V and silicon diode at 0.7 V. When a current flows in the circuit, the potential of terminal Y will be-
Physics-General
Physics-
If VA and VB denote the potentials of A and B, then the equivalent resistance between A and B in the adjoint electric circuit is-
If VA and VB denote the potentials of A and B, then the equivalent resistance between A and B in the adjoint electric circuit is-
Physics-General
Physics-
Which is the wrong statement in following sentence? A device in which P and N type semiconductors are used is more useful then a vacuum tube because-
Which is the wrong statement in following sentence? A device in which P and N type semiconductors are used is more useful then a vacuum tube because-
Physics-General
Chemistry-
This reaction is called
This reaction is called
Chemistry-General
Chemistry-
In the following compounds :
I) 
II) 
III) 
IV) 
the order of basicity is
In the following compounds :
I)
II)
III)
IV)
the order of basicity is
Chemistry-General
Chemistry-
Chemistry-General
