By Surendra | June 10, 2020 0 Comment 0% 10 Created by Surendra Current Electricity Quiz in English Set 1 All Important Question Answers for Electrician Related Exams 1 / 25 A resistance having rating 10 ohms 10 W is likely to be a carbon resistor wire wound resistor variable resistor metallic resistor 2 / 25 Which one of the following does not have negative temperature co-efficient ? Rubber Paper Aluminium Mica 3 / 25 Resistance of a tungsten lamp as applied voltage increases none of the above remains same increases decreases 4 / 25 In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes using same supply mains none of the above length of heating element has no effect on heating if water length of heating element should be decreased length of heating element should be increased 5 / 25 A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb the heater output will increase remain same heater will burn out decrease 6 / 25 Two resistors are said to be connected in series when total current equals the sum of branch currents sum of IR drops equals the applied e.m.f. same current passes in turn through both both carry the same value of current 7 / 25 The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms what is the resistance of the other ? 18 Q 36 Q 64 Q 48 Q 8 / 25 When electric current passes through a metallic conductor its temperature rises. This is due to mutual collisions between conducting electrons mutual collisions between metal atoms collisions between conduction electrons and atoms the release of conduction electrons from parent atoms 9 / 25 Which of the following statement is true both for a series and a parallel D.C. circuit? Currents are additive Elements have individual currents Power are additive Voltages are additive 10 / 25 Ohm’s law is not applicable to circuits with low current densities high voltage circuits carbon resistors vacuum tubes 11 / 25 With rise in temperature the resistance of pure metals remains constant increases first increases and then decreases decreases 12 / 25 For which of the following ‘ampere second’ could be the unit ? Reluctance Energy Charge Power 13 / 25 Electric current passing through the circuit produces chemical effect luminous effect magnetic effect thermal effect 14 / 25 With rise in temperature the resistance of semi-conductors remains constant increases first increases and then decreases decreases 15 / 25 Resistance of a material always decreases if temperature of material is decreased number of free electrons available become more none of the above is correct temperature of material is increased 16 / 25 The resistance of a conductor varies inversely as resistivity temperature area of cross-section length 17 / 25 All of the following are equivalent to watt except (amperes) ohm amperes/volt amperes x volts joules/sec. 18 / 25 Whether circuit may be AC. or D.C. one following is most effective in reducing the magnitude of the current. Resistor Reactor Inductor Capacitor 19 / 25 An electric filament bulb can be worked from D.C. supply only A.C. supply only Battery supply only All above 20 / 25 Which of the following quantities remain the same in all parts of a series circuit ? Current Power Resistance Voltage 21 / 25 Which is the best conductor of electricity ? Iron Copper Silver Carbon 22 / 25 Varistors are non-linear resistors resistors with zero temperature coefficient insulators carbon resistors 23 / 25 Which of the following materials has a negative temperature co-efficient of resistance? Copper Carbon Brass Aluminum 24 / 25 If the efficiency of a machine is to be high what should be low ? kWh consumed Losses Input power True component of power 25 / 25 Insulating materials have the function of preventing a short circuit between conducting wires storing very high currents conducting very large currents preventing an open circuit between the voltage source and the load कृपया सही सूचना भरें ताकि सर्टिफिकेट ईमेल पर भेजा जा सकें। NameEmailPhone NumberDistrictSchool/Coaching Name Your score is LinkedIn Facebook VKontakte 0% Restart quiz आपको यह क्विज अच्छी लगी तो 5 स्टार रेटिंग जरुर दें । Send feedback
