In this section each item consists of a question or an incomplete statement foll

Question

In this section each item consists of a question or an incomplete statement followed by four suggested answer or completions. You are to select the most appropriate answer in each case by circling its letter. Each question is worth two marks giving 20 marks is total. You are advised to spend about 15 minutes on this section. 1. Which of the following is a correct statement of Ohm's law? A V = I^2 R B P = VI C R = V/I D V = IR 2. Which of these is the exist1 unit of capacitance? A Ampere B Coulomb C Ohm D Farad 3. Which of these is a correct statement of Kirchhoff's second law? A The sum of the emfs and voltages around a closed loop in a circuit must sum to zero. B The sum of the currents entering a junction must equal the sum of the currents leaving the same junction. C The voltage equals the product of the current and potential differences. D Charge is conserved in a circuit. 4. A Kilowatt hour is a unit of... A Energy B Charge C Voltage D Current

Explanation / Answer

1) according to Ohm's law

voltage is directly proportional to current

V = IR

R = V/I

so,option c) is the correct answer

2) SI unit of capacitance is Farad

3)Kirchoff's second law states that sum of electric potential around any closed loop is zero.

so option a) is the correct answer

4) kWh is the unit of energy

option A) is the correct answer

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