66)Three resistors ,2 ohms , 3 ohms and R ohms are connected in series to a battery of voltage 20V .If the current through the circuit is 1 ampere, then the value of R is _____ ohms.
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Answers
Answered by
10
equivalent resistance = 5+R
v=20
I=1
so
V=IR
20= 1*(5+R)
R=15 ohm
v=20
I=1
so
V=IR
20= 1*(5+R)
R=15 ohm
Answered by
16
hey there,
so resistor are connected in series so
=) equivalent resistance = 2 +3+R
= 5+R
=)potential difference =20 V.
=) current flowing = 1 ampere
from ohm's law
=) V = IR
=) 20 = 1( 5+R)
=) R = 20 - 5 = 15 him
so value if R = 15 ohm
_____________________________
hope it will help u
so resistor are connected in series so
=) equivalent resistance = 2 +3+R
= 5+R
=)potential difference =20 V.
=) current flowing = 1 ampere
from ohm's law
=) V = IR
=) 20 = 1( 5+R)
=) R = 20 - 5 = 15 him
so value if R = 15 ohm
_____________________________
hope it will help u
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