ETEA MDCAT 2022 PAPER MDCAT 2022(PART 9) 1. Two charges one of which is Q1 = 3μC and second one is C = -lμC are separated by 100cm. The electric potential is zero at a point 50 cm from Q1 25 cm from Q2 33.3 cm from Q1 75 cm from Q2 2. Magnetic lines of force are Actual lines which show actual magnetic field Actual lines which show imaginary magnetic field Imaginary lines which show imaginary magnetic field Imaginary lines which show actual magnetic field 3. Potential divider circuit is made when Emf source is divided Number of electrons are divided Resistance is divided Current is divided 4. A conductor has resistance P. If its length is stretched to twice the actual value and its radius is reduced to one third of its original value, the new resistance will be: 18R 27R 3R 9R 5. Electricity consumption is calculated commercially in Kilo-watt hour Giga watt Mega watt Kilo-watt 6. A conductor has length equal to n meters and radius r meters. Its resistance will be equal to: R = pr-2 R = pr-1 R = pr-4 R =pr-3 7. A charged particle entered in a magnetic field anti parallel to the field, magnetic force on this particle is: BINA BeV sinθ Zero IqLv 8. When a neutron enters into a magnetic field B perpendicularly with velocity v, its acceleration is: Uniform and non-zero Zero Positive Centripetal 9. What is the inappropriate statement for step-up transformer Heat is never produced in step-up transformer It increases given AC voltage It decreases given alternating current Its input energy is always less than its output energy 10. Two electric bulbs “A” and “B” of powers 500W and 2000W respectively are connected to 240V supply. The ratio of current passing through bulb “A” to the current passing through bulb “B” is: 1:8 1:2 1:4 1:16 Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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