Physics-
General
Easy
Question
In the diagram resistance between any two junctions is R. Equivalent resistance across terminals A and B is
The correct answer is:
Related Questions to study
physics-
In the circuit shown in figure reading of voltmeter is V1 when only S1 is closed, reading of voltmeter is V2 when only S2 is closed. The reading of voltmeter is V3 when both S1 and S2 are closed then
In the circuit shown in figure reading of voltmeter is V1 when only S1 is closed, reading of voltmeter is V2 when only S2 is closed. The reading of voltmeter is V3 when both S1 and S2 are closed then
physics-General
physics-
In the circuit shown, what is the potential difference VPQ?
In the circuit shown, what is the potential difference VPQ?
physics-General
physics-
The circuit diagram shown consists of a large number of element (each element has two resistors R1 and R2). The resistance of the resistors in each subsequent element differs by a factor of K = 1/2 from the resistance of the resistors in the previous elements. The equivalent reistance between A and B shown in figure is :
The circuit diagram shown consists of a large number of element (each element has two resistors R1 and R2). The resistance of the resistors in each subsequent element differs by a factor of K = 1/2 from the resistance of the resistors in the previous elements. The equivalent reistance between A and B shown in figure is :
physics-General
physics-
In the given circuit the current flowing through the resistance 20 ohms is 0.3 ampere while the ammeter reads 0.8 ampere. What is the value of R1?
In the given circuit the current flowing through the resistance 20 ohms is 0.3 ampere while the ammeter reads 0.8 ampere. What is the value of R1?
physics-General
physics-
ABCD is a square where each side is a uniform wire of resistance 1
. A point E lies on CD such that if a uniform wire of resistance 1 is connected across AE and constant potential difference is applied across A and C then B and E are equipotential.
ABCD is a square where each side is a uniform wire of resistance 1. A point E lies on CD such that if a uniform wire of resistance 1 is connected across AE and constant potential difference is applied across A and C then B and E are equipotential.
physics-General
physics-
Consider an infinte ladder network shown in figure. A voltage V is applied between the points A and B. This applied value of voltage is halved after each section.
Consider an infinte ladder network shown in figure. A voltage V is applied between the points A and B. This applied value of voltage is halved after each section.
physics-General
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The resistance of all the wires between any two adjacent dots is R. Then equivalent resistance between A and B as shown in figure is :
The resistance of all the wires between any two adjacent dots is R. Then equivalent resistance between A and B as shown in figure is :
physics-General
physics-
Resistances R1 and R2 each 60 are connected in series as shown in figure. The Potential difference between A and B is kept 120 volt. Then what will be the reading of voltmeter connected between the point C & D if resistance of voltmeter is 120
Resistances R1 and R2 each 60 are connected in series as shown in figure. The Potential difference between A and B is kept 120 volt. Then what will be the reading of voltmeter connected between the point C & D if resistance of voltmeter is 120
physics-General
physics-
Two current elements P and Q have current voltage characteristics as shown below :
Which of the graphs given below represents current voltage characteristics when P and Q are in series.
Two current elements P and Q have current voltage characteristics as shown below :
Which of the graphs given below represents current voltage characteristics when P and Q are in series.
physics-General
physics-
The battery in the diagram is to be charged by the generator G. The generator has a terminal voltage of 120 volts when the charging current is10 amperes. The battery has an emf of 100 volts and an internal resistance of 1 ohm. In order to charge the battery at 10 amperes charging current, the resistance R should be set at
The battery in the diagram is to be charged by the generator G. The generator has a terminal voltage of 120 volts when the charging current is10 amperes. The battery has an emf of 100 volts and an internal resistance of 1 ohm. In order to charge the battery at 10 amperes charging current, the resistance R should be set at
physics-General
physics-
Two batteries one of the emf 3V, internal resistance 1 ohm and the other of emf 15 V, internal resistance 2 ohm are connected in series with a resistance R as shown. If the potential difference between a and b is zero the resistance of R in ohm is
Two batteries one of the emf 3V, internal resistance 1 ohm and the other of emf 15 V, internal resistance 2 ohm are connected in series with a resistance R as shown. If the potential difference between a and b is zero the resistance of R in ohm is
physics-General
physics-
In the network shown the potential difference between A and B is 
In the network shown the potential difference between A and B is
physics-General
physics-
A circuit is comprised of eight identical batteries and a resistor R = 0.8 . Each battery has an emf of 1.0 V and internal resistance of 0.2 . The voltage difference across any of the battery is
A circuit is comprised of eight identical batteries and a resistor R = 0.8 . Each battery has an emf of 1.0 V and internal resistance of 0.2 . The voltage difference across any of the battery is
physics-General
physics-
In the figure shown, battery 1 has emf = 6 V and internal resistance = 1 . Battery 2 has emf = 2V and internal resistance = 3 . The wires have negligible resistance. What is the potential difference across the terminals of battery 2 ?
In the figure shown, battery 1 has emf = 6 V and internal resistance = 1 . Battery 2 has emf = 2V and internal resistance = 3 . The wires have negligible resistance. What is the potential difference across the terminals of battery 2 ?
physics-General
physics-
Under what condition current passing through the resistance R can be increased by short circuiting the battery of emf E2. The internal resistances of the two batteries are r1 and r2 respectively
Under what condition current passing through the resistance R can be increased by short circuiting the battery of emf E2. The internal resistances of the two batteries are r1 and r2 respectively
physics-General
