Correct Solution Wins 1000 Naira Airtime - Education

Correct Solution Wins 1000 Naira Airtime - Education - Nairaland

Nairaland Forum › Nairaland General › Education › Correct Solution Wins 1000 Naira Airtime (439 Views)

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Correct Solution Wins 1000 Naira Airtime by pimpchi(op): 8:49pm On May 12, 2020

Show all work to win, first to get it wins

Re: Correct Solution Wins 1000 Naira Airtime by Shelumiel: 9:22pm On May 12, 2020

Na wah o. This looks like a superposition thingy. grin

Re: Correct Solution Wins 1000 Naira Airtime by NDSMELODY(m): 11:13pm On May 12, 2020

pimpchi:
Show all work to win, first to get it wins

pls i cannt view that question clearly

Re: Correct Solution Wins 1000 Naira Airtime by pimpchi(op): 11:27pm On May 12, 2020

NDSMELODY:
pls i cannt view that question clearly

Best view

Re: Correct Solution Wins 1000 Naira Airtime by dejt4u(m): 11:59pm On May 12, 2020

pimpchi:
Best view

Primary voltage (Vp) = 110 V
Number of primary turns (Np)= 1400 turns
Number of secondary turns (Ns) = 3610 turns
Secondary voltage (Vs) = ?
But Vp/Vs = Np/Ns
Vs = (Vp × Ns)/Np
Vs = (110 × 3610)/1400
Vs = 283.6 V

We can use the Vs gotten above to calculate Secondary Current (I_load) using the resistance (load) given..
Load = 3.9 × 10³ ohms
That is; Vs = I_load × load
I_load = Vs/load
I_load = 283.6 ÷ 3.9 × 10³
I_load = 0.073 A

To calculate primary current (I_source); we use the expression below
Vp/Vs = I_load/I_source
I_source = (I_load × Vs)/Vp
I_source = (0.073A × 283.6V)/110V
I_source = 0.188 A

I_source = 0.188 Amperes and
I_load = 0.073 Amperes

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