357463
Assertion : There is net electrostatic field inside the cell when circuit is closed and steady current is passing. Reason : In closed circut electrons move from negative to positive electrode.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
In a closed circuit with steady current flow, an electrostatic field within the cell opposes the external voltage \((emf)\), \(\Rightarrow\) the potential difference across electrodes inside the cell will be less than the cell's emf. So correct option is (2).
PHXII03:CURRENT ELECTRICITY
357464
As the temperature of hot junction increases, the thermo emf
1 always increases
2 always decreases
3 may increase or decrease
4 always remains constant
Explanation:
Variation of thermo emf with the temperature of hot junction :
357463
Assertion : There is net electrostatic field inside the cell when circuit is closed and steady current is passing. Reason : In closed circut electrons move from negative to positive electrode.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
In a closed circuit with steady current flow, an electrostatic field within the cell opposes the external voltage \((emf)\), \(\Rightarrow\) the potential difference across electrodes inside the cell will be less than the cell's emf. So correct option is (2).
PHXII03:CURRENT ELECTRICITY
357464
As the temperature of hot junction increases, the thermo emf
1 always increases
2 always decreases
3 may increase or decrease
4 always remains constant
Explanation:
Variation of thermo emf with the temperature of hot junction :
