JEE-main (ES)

These questions are from IIT JEE main / AIEEE exam:

[AIEEE was the earlier name of IIT JEE main exam]

Questions (Q1) to (Q10) are given below in this page itself. 

Click this link for Q11 to Q20.

Q1) [JEE main/AIEEE 2002]     

On moving a charge of 20 coulomb by 2cm, 2 J of work is done, then the potential difference between the points is

(a) 0.1 V       b) 8 V

c) 2 V             d) 0.5 V

 

Q2) [JEE main/AIEEE 2009]

Two points P and Q are maintained at the potentials of 10 V and - 4 V, respectively. The work done in moving 100 electrons from P to Q is

(a) 9.60x10-17 J

(b) -2.24 x10-16 J

(c) 2.24 x10-16 J

(d) -9.60x10-17 J

 

Q3) [JEE main/AIEEE 2009]

This question contains statement-1 and statement-2. Of the four choices given after the statements, choose the one that best describes the two statements.

Statement1- For a charged particle moving from point P to point Q, the net work done by an electrostatic field on the particle is independent of the path connecting point P to point Q.

Statement 2- The net work done by a conservation force on an object moving along a closed loop is zero.

(a) Statement 1 is true, statement 2 is true; statement 2 is the correct explanation of statement 1.

(b) Statement 1 is true, statement 2 is true, statement 2 is not correct explanation of statement 1

(c) Statement 1 is false, statement 2 is true.

(d) Statement 1 is true, statement 2 is false.

 
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Q4) [JEE main/AIEEE 2002]

If there are n capacitors in parallel connected to V volt source, then the energy stored is equal to:

(a) CV      b) ½ nCV2

c) CV2       d)  CV2

 

Q5) [JEE main/AIEEE 2002] Capacitance of a spherical conductor with radius 1 m is

(a) 1.1 x 10-10   b) 10-6

c) 9x10-9              d) 10-3

 

Q6) [JEE main/AIEEE 2003]

A sheet of aluminum foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

(a) Decreases

b) remains unchanged

c) becomes infinite

d) increases

 
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Q7) [JEE main/AIEEE 2003]

The work done in placing a charge of 8x10-18 coulomb on a condenser of capacity 100 micro-farad is

(a) 16x10-32 joule

(b) 3.1x10-26 joule

(c) 4x10-10 joule

(d) 32 x10-32 joule

 

Q8) [JEE main/AIEEE 2005]

A parallel plate capacitor is made by stacking n equally spaced plates connected alternatively. If the capacitance between any two adjacent plates is ‘C’ then the resultant capacitance is

(a) (n+1) C       b) (n-1) C

c) nC                 d) C

 

Q9) [JEE main 2013]

Two capacitors C1 and C2 are charged to 120 V and 200 V respectively. It is found that connecting them together the potential on each one can be made zero. Then

a) 5C1 = 3C2

b) 3C1=5C2

c) 3C1+5C2=0

d) 9C1=4C2
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Q10) [JEE main/AIEEE 2003]

If the electric flux entering and leaving an enclosed surface respectively is φ1 and φ2, the electric charge inside the surface will be

a)   (φ21) ε0            

b)   (φ12)/ε0

c)   (φ21)/ε0

d)    (φ12) ε0

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