Electronics - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - True or False (Q.No. 10)
10.
If the current in the given circuit is increased to 24 mA, the source voltage must have tripled.
Discussion:
4 comments Page 1 of 1.
Karl said:
9 years ago
Obviously, if we change the resistance to 100 ohms instead of 300 we increase the circuit current by a factor of 3. This question is flawed!
We have to assume that the resistance is not subject to change as defined in the circuit diagram.
The supply voltage, however, must be assumed to be the only value subject to change as it does not have a definitive value to begin with.
If you answered TRUE to this question whilst taking into account that the resistor value is fixed and not subject to change, in my opinion, it is correct, well done!
We have to assume that the resistance is not subject to change as defined in the circuit diagram.
The supply voltage, however, must be assumed to be the only value subject to change as it does not have a definitive value to begin with.
If you answered TRUE to this question whilst taking into account that the resistor value is fixed and not subject to change, in my opinion, it is correct, well done!
Vikash mishra said:
1 decade ago
Firstly current I=6mA, and voltage V=1.8v.
And then current increases 4 time so voltage also increases 4 time.
By.
V=IR (current and voltage are linearly relate to each other).
And then current increases 4 time so voltage also increases 4 time.
By.
V=IR (current and voltage are linearly relate to each other).
Divya said:
1 decade ago
According to ohm's law V = IR
when I=6 mA, R=300 then voltage is 1.8V
when I=24mA, R=300 then voltage is 7.2V
So, voltage is 4 times increased.
when I=6 mA, R=300 then voltage is 1.8V
when I=24mA, R=300 then voltage is 7.2V
So, voltage is 4 times increased.
Kavya k m said:
1 decade ago
Nice question.
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