Question

An electric iron when works in 220 volt line has a resistance of 31.25 Om what is the current in SI unit??

Plzz help tp going on..... I will follow who answer this correctly. I will report is spamming is done
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Answer 1

Answer:

The electric power required to operate a device is the input voltage times the current required.

P = VI

where

P = electric power

V = voltage used

I = current in amperes

VI is V times I

Electric power is measured in watts. The electrical energy used is the electric power times the time. That is, E = Pt. If we measure the electric power as kilowatts and the time as hours, we get the energy used by an electrical system in terms of kilowatt-hours. That is the unit of measurement the electric company uses when determining our bill.

In this case, th electric iron of resistance 88 is used at 220 volt for 2 hours.

The power P = VI, substituitng I=V/R we get, P=

R

V

2

=

88

220

2

=550W=0.55kW.

Therefore, energy spent = E = Pt = 0.55kW×2hrs=1.1units.

Explanation:

I think it is helpfull for you

Answer 2

Answer:

(A) When the foreign gene is inserted within alpha - galactosidase gene, the enzyme alpha - galactosidase gets inactivated.

Explanation:

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