EASY
12th ICSE
IMPORTANT
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Two unequal resistances joined in parallel are connected to a cell. Which of the following statements is true?


 

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Important Questions on DC Circuits and Measurements

EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 7
In the given network of resistors, the ammeter A will read :
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MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 8
A student connects four cells, each of emf 1.5 V and internal resistance 0.25 Ω in series but one cell has its terminals reversed. This battery sends current in a  2 Ω resistor. The current is :
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 9
Five resistors are connected as shown in figure. The effective resistance equivalent resistance between the points A and B is :
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EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 10
Potential gradient K remains constant until: 
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 11
The null method is superior to deflection method because 
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 1
A resistor R is connected to a cell of emf E and internal resistance r. Potential difference across resistor R is found to be V. State the relation between E, V, R and r
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 2
A constant-voltage supply is sending a constant current in a resistor. What is being dissipated in the circuit?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 6 - DC Circuits and Measurements>QUESTIONS>Q 3
Is internal resistance a drawback of the cell? Does it remain constant?