► A charged rod is touched to a small metallic sphere placed at the origin. This is done at time t = 0. A sensitive field detector detects the electric fields at points 10 cm away and 50 cm away at time t = 1 nanosecond

A charged rod is touched to a small metallic sphere placed at the origin. This is done at time t = 0. A sensitive field detector detects the electric fields at points 10 cm away and 50 cm away at time t = 1 nanosecond.

The expression of Coulomb’s law can match the measured value

(a) at 10 cm point but not at 50 cm point

(b) at 50 cm point but not at 10 cm point

(c) both at 50 cm point and at 10 cm point

(d) neither at 50 cm point nor at 10 cm point

>>>>>>>>

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► If the doping level in a crystal diode is increased, the width of depletion layer ____. (Correct Answer)

Question : If the doping level in a crystal diode is increased, the width of depletion layer ____
(A). remains the same
(B). is decreased
(C). is increased
(D). none of the above

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► Metric coefficients of Spherical Polar coordinates

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► A Carnot engine whose low temperature reservoir is at 7 degree Celsius has an efficiency of 50%. If it is desired to increase the efficiency to 70%, by how many degrees should the temperature of the high temperature reservoir be increased ?

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► Find the mass of electron and kinetic energy of an electron moving with a velocity 0.99 c

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► Electron in the atom are held in the atom due to

Question : Electron in the atom are held in the atom due to

(A). coulombs force

(B). nuclear force

(C). atomic force

(D). coulombs and nuclear force

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► In the formula of the angular momentum L = rxp (p) denotes the

Question : In the formula of the angular momentum L xp (p) denotes the

(A). displacement

(B). power

(C). momentum

(D). speed

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► The first linear equation of motion is represented as

Question : The first linear equation of motion is represented as

(A). Vi f + at

(B). Vf i-at

(C). Vf i + at

(D). Vf i + a

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► If the turns ratio of transformer is 10 it means that

Question : If the turns ratio of transformer is 10 it means that

(A). Is 0 Ip

(B). Ip 0 Is

(C). Ns 0 Np

(D). IsIp and IpIs

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► The gate whose output is 0 only when the inputs are different is called

Question : The gate whose output is 0 only when the inputs are different is called

(A). XOR

(B). XNOR

(C). NOR

(D). NAND

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► In 1909 Millikan devised the technique for measurement of

Question : In 1909 Millikan devised the technique for measurement of

(A). charge on electron

(B). charge on cathode

(C). charge on neutron

(D). charge on proton

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► At low temperature a body emits radiation of

Question : At low temperature a body emits radiation of

(A). shorter wave length

(B). high frequencies

(C). longer wavelength

(D). low frequencies

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► In a PNP transistor the n-region as compared to the p-region is

Question : In a PNP transistor the n-region as compared to the p-region is

(A). smaller

(B). larger

(C). same

(D). negligible

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► The change in kinetic energy is measured as the difference of

Question : The change in kinetic energy is measured as the difference of

(A). 1/2(mv)�

(B). (mv)�

(C). 1/2(mv)

(D). 1/2(m)�

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► Changing current in a coil produces emf in the same coil is known as

Question : Changing current in a coil produces emf in the same coil is known as

(A). mutual induction

(B). self induction

(C). induced emf

(D). emf

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► According to the system international the length of the substance is measured in

Question : According to the system international the length of the substance is measured in

(A). moles

(B). seconds

(C). meters

(D). kelvin

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► Zero digit is the only digit that

Question : Zero digit is the only digit that

(A). maybe significant

(B). may not be significant

(C). is significant

(D). both maybe and may not be significant

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► At low temperature a body emits radiation of

Question : At low temperature a body emits radiation of

(A). shorter wave length

(B). high frequencies

(C). longer wavelength

(D). low frequencies

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► In 1909 Millikan devised the technique for measurement of

Question : In 1909 Millikan devised the technique for measurement of

(A). charge on electron

(B). charge on cathode

(C). charge on neutron

(D). charge on proton

Posted by our guest writer S . If there is any content violations Report the Administrator by clicking "Report Problem".

► If the turns ratio of transformer is 10 it means that

Question : If the turns ratio of transformer is 10 it means that

(A). Is 0 Ip

(B). Ip 0 Is

(C). Ns 0 Np

(D). IsIp and IpIs

Posted by our guest writer S . If there is any content violations Report the Administrator by clicking "Report Problem".

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► A charged rod is touched to a small metallic sphere placed at the origin. This is done at time t = 0. A sensitive field detector detects the electric fields at points 10 cm away and 50 cm away at time t = 1 nanosecond

► If the doping level in a crystal diode is increased, the width of depletion layer ____. (Correct Answer)

► Metric coefficients of Spherical Polar coordinates

► A Carnot engine whose low temperature reservoir is at 7 degree Celsius has an efficiency of 50%. If it is desired to increase the efficiency to 70%, by how many degrees should the temperature of the high temperature reservoir be increased ?

► Find the mass of electron and kinetic energy of an electron moving with a velocity 0.99 c

► Electron in the atom are held in the atom due to

► In the formula of the angular momentum L = rxp (p) denotes the

► The first linear equation of motion is represented as

► If the turns ratio of transformer is 10 it means that

► The gate whose output is 0 only when the inputs are different is called

► In 1909 Millikan devised the technique for measurement of

► At low temperature a body emits radiation of

► In a PNP transistor the n-region as compared to the p-region is

► The change in kinetic energy is measured as the difference of

► Changing current in a coil produces emf in the same coil is known as

► According to the system international the length of the substance is measured in

► Zero digit is the only digit that

► At low temperature a body emits radiation of

► In 1909 Millikan devised the technique for measurement of

► If the turns ratio of transformer is 10 it means that

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