1 ) P and Q are two charges of charge + 2 uC and - 2 uC respectively . So Electric field at point Z is ? A ) zero , B ) non - zero , C ) infinite , D ) None of these ,

1 )  P and Q are two charges of charge + 2 uC  and   - 2 uC  respectively .   So Electric field at point Z is ?

A ) zero ,                                          B ) non - zero ,

C ) infinite ,                                      D ) None of these ,

Correct answer : -   B ) non - zero ,

Because both charges have Same magnitudes .  So Voltage between them is zero  and electric field between them at point Z is non - zero .

 

2 )  E = ∆V / d .

∆V = potential difference .

E = Electric field .

d = distance .

 

3 )  If electric field at a point is zero , so potential difference at a same point will be . . . . . . . . . . . . . . . ,

A ) zero ,                                       B ) non zero ,

C ) infinite ,                                    D ) None of these .

Correct answer : -   B ) non zero ,

if electric field is zero , at same point potential difference will not be zero and vice versa .

 

4 ) When a plate is earthened , so its potential difference becomes . . . . . . . . . . . . . . . ,

A ) equal to zero ,                                 B ) infinite ,

C ) non zero ,                                        D ) None of these .

Correct answer : -   A ) equal to zero ,

 

5 ) In projectile motion , horizontal force is . . . . . . . . . . . . ,

A ) constant ,                                             B ) uniform ,

C ) variable ,                                        D ) None of these .

Correct answer : -      A ) constant ,

So object will have acceleration in downwards direction .

 

6 ) If an electron is entering in an electric field as shown , so it will deflect or not ?

A ) deflect towards positive plate ,

B ) deflect towards negative plate ,

C ) remains undeflected ,

D ) None of these .

Correct answer : -  A ) deflect towards positive plate ,

Now go to online quiz section and Physics Quiz 10 is uploaded related to these mcqs  , so check your preparation by this link : -

UG Online quizzes