Electrical Engineering - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - General Questions (Q.No. 6)
6.
How much resistance is required to limit the current from a 12 V battery to 3.6 mA?
3.3 k
33 k
2.2 k
22 k
Discussion:
24 comments Page 2 of 3.
J.venkatesh said:
1 decade ago
According to ohms law,
V=IR
V=12v
I=3.6ma
R=V/I
I=0.0036AMPS.
R=12/0.036
FINALLY R=3300 OHMS.
R=3.3KOHMS.
V=IR
V=12v
I=3.6ma
R=V/I
I=0.0036AMPS.
R=12/0.036
FINALLY R=3300 OHMS.
R=3.3KOHMS.
Pramod shinva said:
1 decade ago
Over formula is suitable for only in Ohms Volts Amps. So we should be convert mA to Amps.(3.6MA = 3600A).
R = V/I.
= 12/3600.
= 0.0033ohms (0.0033ohms = 3.33 kohms).
= 3.3 kohms.
R = V/I.
= 12/3600.
= 0.0033ohms (0.0033ohms = 3.33 kohms).
= 3.3 kohms.
Jayadhar said:
1 decade ago
Assuming Temperature is constant, By OHM'S law,
V = RI.
hence; R= V/I.
R = 12/36000.
R = 3333.3333 ohms.
V = RI.
hence; R= V/I.
R = 12/36000.
R = 3333.3333 ohms.
Shahadat said:
1 decade ago
@Jayadhar you are right,
Because of Temperature is constant And
According to OHM's law,
V = RI.
R = 3.3 k ohm's.
Because of Temperature is constant And
According to OHM's law,
V = RI.
R = 3.3 k ohm's.
(1)
AVATAR said:
1 decade ago
R = V/I.
SO, R = 12/3.6 = 3.333333333333333.
SO, R = 12/3.6 = 3.333333333333333.
Ravi said:
1 decade ago
According to ohms law.
V = IxR.
R= V/I.
So data given.
V = 12V.
I = 3.6 mA.
R = V/I.
= 12/(3.6*10^-3).
= 12*10^3/3.6. (Here denominator 10^-3 shifted to numerator i.e 10^3).
= 12000/3.6.
= 3.3 kilo ohms.
V = IxR.
R= V/I.
So data given.
V = 12V.
I = 3.6 mA.
R = V/I.
= 12/(3.6*10^-3).
= 12*10^3/3.6. (Here denominator 10^-3 shifted to numerator i.e 10^3).
= 12000/3.6.
= 3.3 kilo ohms.
(3)
Appaso said:
10 years ago
All comments which are given above is totally wrong because ohms law given by them is totally wrong. i is directly proportional to v.
Imrosekhan said:
9 years ago
As we know that v = ir.
According to ohm's law.
So, R = V/I.
Substitute those values in the above equation.
we get, 12/10powerten(-3) = 3.3kiloohms.
According to ohm's law.
So, R = V/I.
Substitute those values in the above equation.
we get, 12/10powerten(-3) = 3.3kiloohms.
Prema said:
9 years ago
Can anyone let me know the conversation of (-3) to (+3)?
Makhado said:
6 years ago
Thank you all for explaining.
(1)
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