The current that exists in the circuit of a photodiode even when no visible light is made incident on it is called
The current that exists in the circuit of a photodiode even when no visible light is made incident on it... View Article
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A current loop of area 0.01m2 and carrying a current of 100 A is held parallel to a magnetic field of intensity 0.1 tesla. The torque in Nm acting on the loop is:
Since magnetic field is parallel to the area vector, torque acting will be zero.
A transistor in a common Emitter configuration is used as a switch, and it is in the ON position. The output voltage Vo is :
When the transistor is in saturation region with switch in ON position , IC is very large and VO is... View Article
To use a common base transistor as an amplifier:
To use a common base transistor as an amplifier the emitter base junction is forward biased and collector base junction... View Article
In the common emitter amplifier, what is the relationship between the phase of the input and output signals?
In the common emitter amplifier, the input and output signals are 180o out of phase with each other.
A diode as a rectifier converts?
A diode as a rectifier is used for converting AC to DC. Following are the applications of the diode as... View Article
A charge of +10 µC enters a uniform magnetic field parallel to its direction. What will happen to the charge?
As the magnetic field is parallel to the charge, no magnetic Lorentz force will act on it and it will... View Article
If the current flowing in the current-carrying conductor placed in a magnetic field is increased, the magnitude of force will :
If the current flowing in the current-carrying conductor placed in a magnetic field is increased, the magnitude of force will... View Article
A device which converts electrical energy into mechanical energy is called:
A device that converts electrical energy into mechanical energy is called an electrical motor. What is an electric motor? An... View Article
A circular loop of radius R carrying a current I is placed in a uniform magnetic field with its plane perpendicular to B. The force on the loop is
Since the plane of magnetic field is perpendicular to the current element, the magnetic Lorentz force acting on it will... View Article
The force between two current carrying conductors is due to which of the following
The force between two current carrying conductors is due to magnetic effect of electric current.
How many depletion regions does a transistor have?
There are two depletion regions in a transistor, since there are two PN junctions.
For transistor action, which of the following statements are correct :
The emitter junction is forward biased and collector junction is reversed biased and the base region of a transistor provides... View Article
Which of the following is not a PN junction of a transistor?
There are two PN junctions: one at the emitter-base junction, and the other at the base-collector junction.
In magnetic field acting along the x-axis, a conductor carries a current along y-axis. The force experienced by the conductor is along :
In magnetic field acting along the x-axis, a conductor carries a current along y-axis. By applying right hand screw rule... View Article
A charge moves through a magnetic field with a certain velocity. Direction of force can be obtained by applying :
Direction of force can be obtained by applying rule of cross product.
The binary number system has a base of
Answer: A binary number system is one of the four types of number system. In computer applications, where binary numbers... View Article
A transistor is used in common emitter mode as an amplifier. Then:
The input signal is connected in series with the voltage applied to bias the base emitter junction and the base... View Article
The conductivity of a photosensitive semiconductor
A photosensitive semiconductor is a photodiode in which light is allowed to fall at the junction and its conductivity depends... View Article
The ———- across a Zener diode remains constant.
The voltage across a zener diode remains constant.
