Pls give the soln of qsn no (27).

Pls give the soln of qsn no (27). (c) Franck and Hertz (d) Young 25. The power factor varies between (a) O to I (b) 2 and 2.S (c) I t02 (d) 3.5 to s 26. The reactance of an inductance of 0.01 H to a 50 Hz A.C. is (a) 1.04 Q (c) 0.59 Q (b) 6.28 Q (d 3.14 Q 27. The primary winding ofa transformer hasS00 turns and its secondary has 5000 turns. If primary is connected to a.c. supply of 20V and 50Hz, then secondary will have an output of (b) 2 V,5Hz (a 200V,50Hz (d) 200 V, 500 Hz (c) 2 v, 50 Hz i. Turn ratio in a step-up transformer isl : 2. If a Lechlance cell of 1.5 V is connected across the input, what is the voltage across the output ? (b 0.0 v

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