Physics
Transfer characteristics [output voltage (Vo) vs. input voltage (Vi)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used
16
Sep
Transfer characteristics [output voltage (Vo) vs. input voltage (Vi)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used it is used Transfer characteristics [output voltage (Vo) vs. input voltage (Vi)] for a base biased transistor in CE configuration is as shown [...]
In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2kΩ is 2V. If the base resistance is 1kΩ and the current amplification of the transistor is 100, the input signal voltage is
16
Sep
In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2kΩ is 2V. If the base resistance is 1kΩ and the current amplification of the transistor is 100, the input signal voltage is In a CE transistor amplifier the audio signal voltage across the collector resistance of 2kΩ is 2V. If [...]
In a common emitter (CE) amplifier having a voltage gain G, the transistor used has transconductance 0.03 mho and current gain 25. If the above transistor is replaced with another one with transconductance 0.02 mho and current gain 20, the voltage gain will
16
Sep
In a common emitter (CE) amplifier having a voltage gain G, the transistor used has transconductance 0.03 mho and current gain 25. If the above transistor is replaced with another one with transconductance 0.02 mho and current gain 20, the voltage gain will In a common emitter (CE) amplifier having a voltage gain G the [...]
A rod of weight w is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at a distance x from A. The normal reaction on A is
16
Sep
A rod of weight w is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at a distance x from A. The normal reaction on A is A disc [...]
A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2.0 rads^−2. Its net acceleration in ms^−2 at the end of 2.0 s is approximately:
16
Sep
A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2.0 rads^−2. Its net acceleration in ms^−2 at the end of 2.0 s is [...]
A rope is wound around a hollow cylinder of mass 3kg and radius 40cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30N?
16
Sep
A rope is wound around a hollow cylinder of mass 3kg and radius 40cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30N? A rope is wound around a hollow cylinder of mass 3kg and radius 40cm. What is the angular acceleration of the cylinder if [...]
A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a maximum height of 4g/3v^2 with respect to the initial position. The object is
16
Sep
A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a maximum height of 4g/3v^2 with respect to the initial position. The object is A small object of uniform density rolls up a curved surface with an initial velocity v′. It reaches up to a [...]
The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle ‘θ’ without slipping and slipping down the incline without rolling is.
16
Sep
The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle ‘θ’ without slipping and slipping down the incline without rolling is. The ratio of the acceleration for a solid sphere (mass ′m′ and radius ′R′) rolling down an incline of angle 'θ' without slipping and [...]
A disc and a solid sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?
16
Sep
A disc and a solid sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? A disc and a solid sphere of same radius but different masses roll off on two [...]
An ideal Carnot’s engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is
16
Sep
An ideal Carnot’s engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is An ideal Carnot's engine whose efficiency 40% receives heat of 500 K. If its efficiency is 50% then the intake temperature for the same exhaust temperature is September [...]