For the given circuit, the maximum power transferred to the load resistance (in

Question

For the given circuit, the maximum power transferred to the load resistance (in mW) is: a) 36.1 b) 16.9 c) 70.3 d) 26.4 The St unit of power is Watt, which is equivalent to: a) joule second b) Amperes/Second c) Ampere Volt For the given circuit above, the maximum voltage across the load resistance occurs when. a R_L = R_3 b) R_L = 2R_ c) R_L R_3 The direction of an induced current can be determined by: a) Ohm's Law b) Lenz's Law c) Coulomb's d) Farady's Law The magnetic flux of a coil increases, when we insert a core made of: a) wood b) brass c) iron d) plastic In electromagnetic induction experiment the magnetic flux through the secondary coil decreases, when: a) the North pole of a magnet is rapidly removed from the secondary coil. b) the primary current is increased by using the rheostat. c) the primary coil is moved into the secondary coil d) the primary current is switched on.

Explanation / Answer

23)

Maximum power is transferred when source resistance is equal to the load resistance.

So RL = 300, thus net resistance of the circuit is, R = 300 + 300 = 600

So current by the battery is,

I = 4.5V/600

So power drawn is, P = VI = (4.5V)2/600

or, P = 33.75 mW

So, the correct option is a)

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24)

Watt = Joule/Second = Ampere.Volt

So correct option is c)

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25)

Maximum voltage would occur when RL >> Rs

So, the correct option is d)

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26)

Lenz's law decides the direction of induced current.

So, the correct option is b)

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27)

Iron has the highest susceptibility. So inserting a core made of iron would strengthen the magnetic field thereby increasing the flux.

So, the correct option is c).

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28)

Please provide more details about the said experiment...

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This concludes the answers. Check the answer and let me know if it's correct. If you need any more clarification, modification or correction, feel free to ask.....

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