Physics Quiz 13

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Physics Quiz 13

1 ) Which pair of following forces will give a resultant force of 5 newtons ? (N stands for newton)

1 point

A ) 2 N and 2 N ,

B ) 1 N and 1 N ,

C ) 1 N and 3 N ,

D ) 1 N and 4 N ,

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2 ) In bringing an electron toward another electron , electrostatic potential energy of system : -

1 point

A ) increase ,

B ) decrease ,

C ) remain same ,

D ) None of these ,

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3 ) If the distance between the plates of parallel plate capacitor of capacitance 10 u f is double , then new capacitance will be : -

1 point

A ) 5 u f ,

B ) 10 u f ,

C ) 15 u f ,

D ) None of these ,

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4 ) If A = 7 N and B = 6 N , which is not resultant of these forces ?

1 point

A ) 7 ,

B ) 11 ,

C ) 14 ,

D ) None of these ,

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5 ) Force – time graph represents . . . . . . . . . : -

1 point

A ) momentum ,

B ) impulse ,

C ) Both of these ,

D ) None of these ,

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6 ) To decrease the capacitance , we put capacitors in . . . . . . . . . . . . . ,

1 point

A ) series ,

B ) parallel ,

C ) both will show same capacitance ,

D ) None of these ,

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7 ) Electric potential is . . . . . . . , when line joining has two equal and opposite charges .

1 point

A ) finite ,

B ) infinite ,

C ) zero ,

D ) None of these ,

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8 ) In a charged capacitor , the energy is stored in the form of . . . . . . . . . . . between the plates .

1 point

A ) magnetic field ,

B ) electric field ,

C ) both of these ,

D ) None of these ,

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9 ) Electric potential of earth is taken to be . . . . . . . . because earth is good conductor .

1 point

A ) finite ,

B ) infinite ,

C ) zero ,

D ) None of these ,

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10 ) Equal charges are given to two spheres of different radii . The potential will be more on : -

1 point

A ) larger sphere ,

B ) smaller sphere ,

C ) both have same ,

D ) None of these ,

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