356134
Assertion : To damp the oscillation metallic frames is used in the dead beat galvanometer. Reason : Principle of electromagnetic damping used in dead beat galvanometers.
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:
Due to eddy current, coil may come to equilibrium instantly. Electromagnetic damping is employed in deadbeat galvanometers by using metallic frames. So correct option is (1).
PHXII07:ALTERNATING CURRENT
356135
Assertion : \(A C\) is more dangerous than \(D C\) Reason : Frequency of \(A C\) is dangerous for human body.
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:
Body acts as capacitor, \(X_{C}=\dfrac{1}{2 \pi f C}\) is high for low supply frequency 50 to \(60\;Hz\). For why Hence, \(A C\), especially at low frequencies, can be more dangerous to the human body due to its effects on the heart's electrical rhythms. But , \(D C\) has \(f=0 \Rightarrow X_{C} \rightarrow \infty\). So correct option is \((1)\).
PHXII07:ALTERNATING CURRENT
356136
In general an alternating current circuit (in one cycle)
1 The average value of current is zero
2 The average value of square of the current is zero
3 Average power dissipation is zero
4 The phase difference between voltage and current is zero
Explanation:
Conceptual Question
PHXII07:ALTERNATING CURRENT
356137
Assertion : An alternating current cannot produce magnetic field. Reason : Alternating current varies with time. across \(L\) leads the current in circuit .
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:
An alternating current, like direct current, produces a magnetic field, But the difference is that the magnitude and direction of the field change continuously with time in case of alternating current. So correct option is (4).
356134
Assertion : To damp the oscillation metallic frames is used in the dead beat galvanometer. Reason : Principle of electromagnetic damping used in dead beat galvanometers.
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:
Due to eddy current, coil may come to equilibrium instantly. Electromagnetic damping is employed in deadbeat galvanometers by using metallic frames. So correct option is (1).
PHXII07:ALTERNATING CURRENT
356135
Assertion : \(A C\) is more dangerous than \(D C\) Reason : Frequency of \(A C\) is dangerous for human body.
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:
Body acts as capacitor, \(X_{C}=\dfrac{1}{2 \pi f C}\) is high for low supply frequency 50 to \(60\;Hz\). For why Hence, \(A C\), especially at low frequencies, can be more dangerous to the human body due to its effects on the heart's electrical rhythms. But , \(D C\) has \(f=0 \Rightarrow X_{C} \rightarrow \infty\). So correct option is \((1)\).
PHXII07:ALTERNATING CURRENT
356136
In general an alternating current circuit (in one cycle)
1 The average value of current is zero
2 The average value of square of the current is zero
3 Average power dissipation is zero
4 The phase difference between voltage and current is zero
Explanation:
Conceptual Question
PHXII07:ALTERNATING CURRENT
356137
Assertion : An alternating current cannot produce magnetic field. Reason : Alternating current varies with time. across \(L\) leads the current in circuit .
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:
An alternating current, like direct current, produces a magnetic field, But the difference is that the magnitude and direction of the field change continuously with time in case of alternating current. So correct option is (4).
356134
Assertion : To damp the oscillation metallic frames is used in the dead beat galvanometer. Reason : Principle of electromagnetic damping used in dead beat galvanometers.
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:
Due to eddy current, coil may come to equilibrium instantly. Electromagnetic damping is employed in deadbeat galvanometers by using metallic frames. So correct option is (1).
PHXII07:ALTERNATING CURRENT
356135
Assertion : \(A C\) is more dangerous than \(D C\) Reason : Frequency of \(A C\) is dangerous for human body.
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:
Body acts as capacitor, \(X_{C}=\dfrac{1}{2 \pi f C}\) is high for low supply frequency 50 to \(60\;Hz\). For why Hence, \(A C\), especially at low frequencies, can be more dangerous to the human body due to its effects on the heart's electrical rhythms. But , \(D C\) has \(f=0 \Rightarrow X_{C} \rightarrow \infty\). So correct option is \((1)\).
PHXII07:ALTERNATING CURRENT
356136
In general an alternating current circuit (in one cycle)
1 The average value of current is zero
2 The average value of square of the current is zero
3 Average power dissipation is zero
4 The phase difference between voltage and current is zero
Explanation:
Conceptual Question
PHXII07:ALTERNATING CURRENT
356137
Assertion : An alternating current cannot produce magnetic field. Reason : Alternating current varies with time. across \(L\) leads the current in circuit .
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:
An alternating current, like direct current, produces a magnetic field, But the difference is that the magnitude and direction of the field change continuously with time in case of alternating current. So correct option is (4).
356134
Assertion : To damp the oscillation metallic frames is used in the dead beat galvanometer. Reason : Principle of electromagnetic damping used in dead beat galvanometers.
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:
Due to eddy current, coil may come to equilibrium instantly. Electromagnetic damping is employed in deadbeat galvanometers by using metallic frames. So correct option is (1).
PHXII07:ALTERNATING CURRENT
356135
Assertion : \(A C\) is more dangerous than \(D C\) Reason : Frequency of \(A C\) is dangerous for human body.
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:
Body acts as capacitor, \(X_{C}=\dfrac{1}{2 \pi f C}\) is high for low supply frequency 50 to \(60\;Hz\). For why Hence, \(A C\), especially at low frequencies, can be more dangerous to the human body due to its effects on the heart's electrical rhythms. But , \(D C\) has \(f=0 \Rightarrow X_{C} \rightarrow \infty\). So correct option is \((1)\).
PHXII07:ALTERNATING CURRENT
356136
In general an alternating current circuit (in one cycle)
1 The average value of current is zero
2 The average value of square of the current is zero
3 Average power dissipation is zero
4 The phase difference between voltage and current is zero
Explanation:
Conceptual Question
PHXII07:ALTERNATING CURRENT
356137
Assertion : An alternating current cannot produce magnetic field. Reason : Alternating current varies with time. across \(L\) leads the current in circuit .
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:
An alternating current, like direct current, produces a magnetic field, But the difference is that the magnitude and direction of the field change continuously with time in case of alternating current. So correct option is (4).
