Please solve all from 19-22 as soon as possible 19. The magnetic field shown in

Question

Please solve all from 19-22 as soon as possible

19. The magnetic field shown in the diaaram is DECREASING! In which direction is curren -4 flowing in the metal hoop? a)clockwise b)counterclockwise c)both directions simultaneously d)current isn't flowing in the metal hoop! 20, Which path will positive current follow in the circuit in Fig. 6 (Switches must remain as they are shown in the diagram.) a) 1,2,6,7,10,9,5 b) 1,2,3,11,10,9,5 c) 1,2,3,8,12,11,10,9,5 d) 1,2,3,8,13,12,11,10,9,5 e) 1,2,3,4,8,12,11,10,9,5 Fig. 6 , ?° 11 12 21, what does the entire circuit in Fig. 7 represent? a) a radio b) a downconverter c) a DC power supply d) a transistor amplifier e) an equalizer What does point A in Fig. 7 represent? a) variable transformer b) capacitor c) variable capacitor d) variable inductor e) variable resistor Fig. 7

Explanation / Answer

19. Option (a) is correct

According to lenz law this circular loop try to increase the magnetic flux through itself and in order to do this current wil flow in clockwise direction.

20. Option (d) is correct.

22. Option (d) is correct.

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