2nd PUC Physics Series-8 wefruPUC Science 2nd Year Physics Series-8 quiz 1 Created on December 02, 2020 By wefru2nd PUC Physics Series 8TEST YOUR KNOWLEDGE OF SCIENCE 1 / 1071. A wire of resistance 3 Ω is cut into three pieces, which are then joined to form a triangle. The equivalent resistance between any corners of the triangle is : 23 Ω 32 Ω 12 Ω 13 Ω 2 / 1072. The length of a conductor is halved. Its resistance will be : halved doubled unchanged quadrupled 3 / 1073. In the above question, the conductance: halved doubled unchanged quadrupled 4 / 1074. Siemen is the unit of: resistance conductance specific conductance None of these 5 / 1075. How much electric energy is consumed by a 100 W lamp used for 6 hours everyday for 30 days? 18 kWh 8 kWh 180 kWh 188 kWh 6 / 1076. Suppose H_{1} is the heat generated per second in the filament of a 100 W, 250 V lamp and H_{2} is the heat generated in the filament of a 200 W, 250 V lamp. Then H_{1}/H_{2} is equal to: 1/2 23/9 0 1 7 / 10Q.77 Two wires of copper are of the same length but’have different diameters. When they are connected in series across a battery, the heat generated is H_{1} When connected in parallel across the same battery, the heat generated during the same time is H_{2} Then : H1 = H2 H1 < H2 H1 > H2 H1 > =H2 8 / 1078. Kirchhoffs first and second laws for electrical circuits are consequences of: conservation of energy conservation of electrical charge and energy respectively conservation of electric charge neither conservation of energy nor electric charge 9 / 1079. A 5 A fuse wire can with stand a maximum power of 1 W in circuit. The resistance of the fuse wire is: 0.2 Ω 5 Ω 0.4 Ω 0.04 Ω 10 / 1080. The length and radius of an electric resistance of a certain wire are doubled simultaneously, then the: resistance will be doubled and specific resistance will be halved resistance will be halved and specific resistance will remain uncharged resistance will be halved and the specific resistance will be doubled resistance and specific resistance will both remain uncharged Your score isThe average score is 40% LinkedIn Facebook Twitter 0% Restart quiz