2nd PUC Physics Series-11 December 3, 2020December 23, 2020wefru PUC Science 2nd Year Physics Series-11 quiz 0 Created on December 02, 2020 By wefru 2nd PUC Physics Series 11 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 101 In following figure shows currents in a part of electrical circuit, then the value of/(in ampere) is given by : 0.3 A 2A 3A 5A 2 / 10 102. The smallest resistance that can be obtained by the combination of n resistors each resistance r is : r/n n/r nr n²r 3 / 10 103. Which of the following has a negative temperature coefficient of resistance ? Tungsten Carbon Nichrome Platinum 4 / 10 104. An electric heating element consumes 500 W, when connected to a 100 V line. If the line voltage becomes 150 V, the power consumed Will be: 750 W 102 W 230 W 859 W 5 / 10 Q.105 A uniform w ire connected across a supply produces heat H per second. If wire is cut into three equal parts and all the parts are connected in parallel across the same supply, the heat produced per second will be : H9 9 H 3 H H/3 6 / 10 106. n India electricity is supplied fordomestic use at 220 V. It is supplied at 110 V in U.S.A. If the resistance of a 60 W bulb use in India is R. the resistance of a 60 W bulb for use in USA will be: 2 R R R/2 R/4 7 / 10 107. In the following figure represents a balanced Wheatstone bridge circuit. What is the value of X ? 25 Ω 5 Ω 35 Ω 525 Ω 8 / 10 108. Two bulbs 25 W, 220 V and 100 W, 220 V are given. Which has higher resistance? 25 W 23 W 45 W 69 W 9 / 10 109. Potentiometer measures the potential difference more accurately than a voltmeter because: It has a wire of high resistance It has a wire of low resistance It does not draw current from external circuit It draws heavy current from external circuit 10 / 10 110. In a Wheatstone bridge, the resistance each arm is 10 Ω. If the resistance galvanometers is also 10 Ω, then effective resistance of the bridge will be : 40 Ω 10 Ω 410 Ω 420 Ω Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz