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the current varies directly as the electromotive force and inversely as the resistance. In a certain machine, an electromotive of 100 volts can send a flow of the current of 20 amperes with the resistance of 20 ohms. Find the current that will flow through the machine if 220 volts will be used and the resistance will not be changed​

Sagot :

Jbgracesancover20go

Answer:

if I varie directly with E and inversely with R

then the expression is 1 = k E/R

where k = constant

thus 20 = k 100/200

k 20* 20 /100 = 4

to find the current I just substitute in the new values

1 = 4* 150/20 /assuming the resistance remains at 20 ohms

= 30 amps

sana makatulong po yan lang po alam ko

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