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## Modern's abc of +2 Sample Papers ### Expected Objective, Very Short, Short and Long Type Questions with Answers ### Group - A #### Objective and Very Short Type Questions With Answer A. **Multiple Choice Questions (MCQs) & Answers with Hints** **A.H.S. Exam. Qns. & Ans.** 1. A force of 2.5...

## Modern's abc of +2 Sample Papers ### Expected Objective, Very Short, Short and Long Type Questions with Answers ### Group - A #### Objective and Very Short Type Questions With Answer A. **Multiple Choice Questions (MCQs) & Answers with Hints** **A.H.S. Exam. Qns. & Ans.** 1. A force of 2.5 N is experienced by a point of charge of 5 x 10-8 C at a point in an electric field. The potential gradient at that point in SI unit is: * (i) 5 x 107 N/C * (ii) 5 x 10-7 V/m * (iii) 5 x 107 V/m * (iv) 5 x 10-7 N/C (2016(A)) 2. The dimension of electric permittivity is: * (i) ML1T-2A1 * (ii) ML1T-3A-1 * (iii) ML-1T-2A-1 * (iv) M-1L-3T4A2 (2015(A)) 3. The equivalent capacitance of two capacitors when joined in parallel is 16 µF and when joined in series is 3 µF. The capacitances of the capacitors are: (2015(A)) * (i) 8 µF and 8 µF * (ii) 4 µF and 12 µF * (iii) 6 µF and 10 µF * (iv) 2 µF and 14 µF. 4. The force between two parallel current carrying conductors separated by a distance x is F. If the current in each conductor is doubled and the distance between them is halved, then the force between them becomes: (2015(A)) * (i) F * (ii) 2F * (iii) 4F * (iv) 8F 5. The equivalent capacitance of the arrangement given in the above circuit is: (2014(A)) * (i) 0.07 µF * (ii) 0.2 µF * (iii) 0.4 µF * (iv) 0.6 µF 6. Force F between charges Q1 and Q2 separated by r is 25 N. It can be reduced to 5 N when the separation between them is made: (2012) * (i) r/√5 * (ii) r/2 * (iii) 2r * (iv) √5r 7. The electric potential at a point in an electric field has the unit of: * (i) Nm3/C * (ii) Nm/C * (iii) NC/m * (iv) Cm/N 8. The potential difference across a conductor is doubled. The amount of heat generated in one second will be: * (i) One-fourth * (ii) Halved * (iii) Four times * (iv) Doubled (2012) 9. The capacity of spherical conductor of radius 10 m is: (2012) * (i) 10 farad * (ii) 9 x 109 farad * (iii) 9 x 10-9 farad * (iv) 9 x 109 farad 10. The expression for the energy stored in a `1/2CV2 capacitor is: * (i) 1/2 CV² * (ii) 1/2 Q2/V * (iii) 1/2 C2V2 * (iv) 1/2QV (2013) 11. An electron is accelerated under a potential difference of 200V. Energy gained by the electron volt is: (2011) * (i) 50 * (ii) 100 * (iii) 200 * (iv) 400 12. Four capacitors, each of capacitance 0.5µF are connected in parallel. The resultant capacitance of the combination is: (2011) * (i) 0.5µF * (ii) 0.125µF * (iii) 2µF * (iv) 4µF