1.) Which of the following describe one of Kirchoff\'s Rules. (There may be more

Question

1.) Which of the following describe one of Kirchoff's Rules. (There may be more than one answer):
a)If there is a net current entering a node, there must be a net current leaving another node.
b)The net current leaving a node is zero.
c)The net current in the circuit is zero.
d)The net current entering a node is zero

2)The current in all parts of a loop in a circuit should be the same.
a) True
b)false

3)If the current goes from left to right in a resistor, the voltage on the right is bigger (more positive) than on the left (of the resistor)
a)True
b)false

4)On solving a circuit, a negative value of current indicates error, and we have to solve again using different assumptions of directions of current.
a)True
b)false

Explanation / Answer

From the given question,

1.) Which of the following describe one of Kirchoff's Rules. (There may be more than one answer):

a)If there is a net current entering a node, there must be a net current leaving another node.

c)The net current in the circuit is zero.

* The net current at any node is zero

2)The current in all parts of a loop in a circuit should be the same.

b)false

*current in all parts of a loop in a circuit should not necesarily be the same.

3)If the current goes from left to right in a resistor, the voltage on the right is bigger (more positive) than on the left (of the resistor)

b)false

*the voltage on the left is bigger (more positive) than on the right (of the resistor)

4)On solving a circuit, a negative value of current indicates error, and we have to solve again using different assumptions of directions of current.

b)false

* Negative value just means that current will be flowing in opposite direction of calculated. No need to solve again. The magnitude is correct.

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