it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1.
Sahay Sir > Question Answers > it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1.
In the circuit shown in the figure, cell is ideal and R2 = 100Ω. A voltmeter of internal resistance 200Ω reads V12=4VandV23=6V between the pair of points 1−2 and 2−3 respectively. What will be the reading of the voltmeter between the points 1−3.
03
Sep
In the circuit shown in the figure, cell is ideal and R2 = 100Ω. A voltmeter of internal resistance 200Ω reads V12=4VandV23=6V between the pair of points 1−2 and 2−3 respectively. What will be the reading of the voltmeter between the points 1−3. AB is a uniform wire of length L=100 cm. A cell of [...]
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AB is a uniform wire of length L=100 cm. A cell of emf V0 = 12 volt is connected across AB. A resistance R ,
as shown ,
In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m ,
In the circuit shown in the figure: ,
it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1. ,
R2=2kΩandR3=5kΩ have been connected to a constant current source as shown in figure. The current source supplies current I=2mA to the circuit. A voltmeter with RV=6kΩ internal resistance is connected ,
Three resistors R1=3kΩ ,
AB is a uniform wire of length L=100 cm. A cell of emf V0 = 12 volt is connected across AB. A resistance R, cell of emf V and a milliammeter (which can show deflection in both directions] is connected to the circuit as shown. Contact C can be slid on the wire AB. Distance AC=x. The current (I) through the milliammeter is taken positive when the cell of emf V is discharging. A graph of IVsx has been shown. Neglect internal resistance of the cells. (a) Find V (b) Find R (c) find I when x=100 cm
03
Sep
AB is a uniform wire of length L=100 cm. A cell of emf V0 = 12 volt is connected across AB. A resistance R, cell of emf V and a milliammeter (which can show deflection in both directions] is connected to the circuit as shown. Contact C can be slid on the wire AB. Distance [...]
Tags:
AB is a uniform wire of length L=100 cm. A cell of emf V0 = 12 volt is connected across AB. A resistance R ,
as shown ,
In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m ,
In the circuit shown in the figure: ,
it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1. ,
R2=2kΩandR3=5kΩ have been connected to a constant current source as shown in figure. The current source supplies current I=2mA to the circuit. A voltmeter with RV=6kΩ internal resistance is connected ,
Three resistors R1=3kΩ ,
Three resistors R1=3kΩ,R2=2kΩandR3=5kΩ have been connected to a constant current source as shown in figure. The current source supplies current I=2mA to the circuit. A voltmeter with RV=6kΩ internal resistance is connected, as shown, to measure the potential difference across R1. (a) Find the percentage error in the measurement of potential difference (V1) across. R1 caused due to finite resistance of the voltmeter. (b) If positions of R2andR3 are interchanged will the percentage error in measurement of V1 increase or decrease ?
03
Sep
Three resistors R1=3kΩ,R2=2kΩandR3=5kΩ have been connected to a constant current source as shown in figure. The current source supplies current I=2mA to the circuit. A voltmeter with RV=6kΩ internal resistance is connected, as shown, to measure the potential difference across R1. (a) Find the percentage error in the measurement of potential difference (V1) across. R1 [...]
Tags:
as shown ,
In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m ,
In the circuit shown in the figure: ,
it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1. ,
R2=2kΩandR3=5kΩ have been connected to a constant current source as shown in figure. The current source supplies current I=2mA to the circuit. A voltmeter with RV=6kΩ internal resistance is connected ,
Three resistors R1=3kΩ ,
A fuse F1 is connected across a source of variable voltage and the voltage is increased gradually. The fuse blows out just when the reading of the voltmeter and ammeter reaches 1.0Vand1.0A respectively (see figure (i)). The experiment is repeated with another fuse F2 and the reading of the voltmeter and ammeter when it blows out is 2.4Vand1.2A respectively. (a) The two fuses are connected in parallel as shown in figure (ii). Voltage is increased gradually. find the reading of the ammeter when any one of the fuses blows out. (b) The two fuses are connected in series as shown in figure (iii). find the reading of the voltmeter at the point one of the fuses blows out.
03
Sep
A fuse F1 is connected across a source of variable voltage and the voltage is increased gradually. The fuse blows out just when the reading of the voltmeter and ammeter reaches 1.0Vand1.0A respectively (see figure (i)). The experiment is repeated with another fuse F2 and the reading of the voltmeter and ammeter when it blows [...]
In the circuit shown in fig a current I = 150 mA enters through A and leaves through B. Reading of the identical voltmeters V1 and V2 are 20 V and 30 V respectively. Find the magnitude of resistance R.
03
Sep
In the circuit shown in fig a current I = 150 mA enters through A and leaves through B. Reading of the identical voltmeters V1 and V2 are 20 V and 30 V respectively. Find the magnitude of resistance R. In the circuit shown in figure AB is a uniform wire of length L = [...]
In the circuit shown in the figure, two resistors R1 and R2 have been connected in series to an ideal cell. When a voltmeter is connected across R1 its reading is V1 = 4.0 volt and when the same voltmeter is connected across R2 its reading is V2=6.0 volt. The reading of the voltmeter when it is connected across the cell is V3 = 12.0 volt. Find the actual across R1 in the circuit.
03
Sep
In the circuit shown in the figure, two resistors R1 and R2 have been connected in series to an ideal cell. When a voltmeter is connected across R1 its reading is V1 = 4.0 volt and when the same voltmeter is connected across R2 its reading is V2=6.0 volt. The reading of the voltmeter when [...]
In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m, it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1.
03
Sep
In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m, it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1. In the [...]