Chapter 22 – Current Electricity
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A current of 2A flows through 2Ω resistor when connected across a battery. The same battery supplies a current of 0.5A when connected across a 9Ω resistor. The internal resistance of the battery is
22
Aug
A current of 2A flows through 2Ω resistor when connected across a battery. The same battery supplies a current of 0.5A when connected across a 9Ω resistor. The internal resistance of the battery is A current of 2A flows through 2Ω resistor when connected across a battery. The same battery supplies a current of 0.5A [...]
A set of ‘n’ equal resistors, of value ‘R’ each, are connected in series to a battery of emf ‘E’ and internal resistance ‘R’. The current drawn is I. Now, the ‘n’ resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10I. The value of ‘n’ is?
22
Aug
A set of ‘n’ equal resistors, of value ‘R’ each, are connected in series to a battery of emf ‘E’ and internal resistance ‘R’. The current drawn is I. Now, the ‘n’ resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10I. The value of ‘n’ is? A [...]
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A set of 'n' equal resistors ,
are connected in series to a battery of emf 'E' and internal resistance 'R'. The current drawn is I. Now ,
of value 'R' each ,
the 'n' resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10I. The value of 'n' is? ,
A battery consists of a variable number ′n′ of identical cells (having internal resistance ′r′ each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?
22
Aug
A battery consists of a variable number ′n′ of identical cells (having internal resistance ′r′ each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n? length l and resistance R is bent into a [...]
In the circuit shown, if a conducting wire is connected between point A and B, the current in this wire will
22
Aug
In the circuit shown, if a conducting wire is connected between point A and B, the current in this wire will if a conducting wire is connected between point A and B In the circuit shown the current in this wire will August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 [...]
Three resistance P,Q,R each of 2Ω and an unknown resistance S from the four amrs of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S ?
22
Aug
Three resistance P,Q,R each of 2Ω and an unknown resistance S from the four amrs of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S ? -q R each of 2Ω and an unknown resistance S from the four [...]
In the circuit shown below, the readings of voltmeters and the ammeters will be
22
Aug
In the circuit shown below, the readings of voltmeters and the ammeters will be In the circuit shown below the readings of voltmeters and the ammeters will be August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between any two of diametrically opposite points will be:
22
Aug
When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between any two of diametrically opposite points will be: length l and resistance R is bent into a complete circle resistance between any two of diametrically opposite points will be When a wire of uniform cross-section [...]
The reading of an ideal voltmeter in the circuit shown is
22
Aug
The reading of an ideal voltmeter in the circuit shown is The reading of an ideal voltmeter in the circuit shown is August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
In the circuit shown the current through the 4Ω resistor is 1 amp when the points P and M are connected to a DC voltage source. The potential difference between the points M and N is:
22
Aug
In the circuit shown the current through the 4Ω resistor is 1 amp when the points P and M are connected to a DC voltage source. The potential difference between the points M and N is: In the circuit shown the current through the 4Ω resistor is 1 amp when the points P and M [...]
A wire of resistance 12 Ωm-1 is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite point, A and B as shown in the figure, is.
22
Aug
A wire of resistance 12 Ωm-1 is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite point, A and B as shown in the figure, is. A and B as shown in the figure A wire of resistance 12 Ωm-1 is bent to form a complete circle [...]