5 When cells are connected in series, the total EMF is: A Average of EMFs B Difference of EMFs C Sum of EMFs D Product of EMFs
7 To convert a galvanometer into a voltmeter, we connect: A Low resistance in parallel B Low resistance in series C High resistance in series D High resistance in parallel
8 Electric shock occurs due to: A Low voltage B High resistance C Flow of current through body D Static charge
9 Which safety device automatically breaks the circuit during overload? A Switch B MCB C Plug D Socket
10 Which quantity remains the same across each branch of a parallel circuit? A Current B Resistance C Voltage D Power
13 One ampere of current means the flow of charge equal to: A 1 coulomb per second B 1 joule per second C 1 volt per second D 1 ohm per second
14 In a parallel combination of resistors, the total resistance is: A Greater than each resistor B Equal to the largest resistor C Less than the smallest resistor D Zero
15 Which instrument is used to measure electric current? A Voltmeter B Ammeter C Ohmmeter D Galvanometer
16 The internal resistance of a cell causes: A Increase in terminal voltage B Decrease in terminal voltage C No effect D Infinite current
17 In the formula R = ρL/A, the symbol ρ represents: A Resistance B Charge density C Resistivity D Potential difference
19 The experiment for demonstration of resistance verifies: A Ohm’s Law B Newton’s Law C Faraday’s Law D Coulomb’s Law