what is the current I ( in A ) drawn from battery at time t = 0 .
Two inductors L1( inductors 1 mH, internal resistance 3 Ω ) and L 2 (inductance 2 mH, internal resistance 4 Ω ),and a resistor R(resistance12ω) are all connected in parallelacross a 5 V battery. The circuit is switched on at time t=0. The ratio of the maximum to the minimum current ( I max/I min ) drawn from the battery is
27
Oct
Two inductors L1( inductors 1 mH, internal resistance 3 Ω ) and L 2 (inductance 2 mH, internal resistance 4 Ω ),and a resistor R(resistance12ω) are all connected in parallelacross a 5 V battery. The circuit is switched on at time t=0. The ratio of the maximum to the minimum current ( I max/I min [...]
A circular wire loop of radius R is placed in the x-y plane centered at the origin O. A square loop of side a(altltR) having two turns is placed with its centre at = root 3 R along the axis of hte circular wire loop, as shown in figure. The plane of the square loop makes an angle of 45∘ with respect to the z-axis. If the mutual inductance between the loops is given bu μ0a^2/ 2p/2 R, then the value of p is
27
Oct
A circular wire loop of radius R is placed in the x-y plane centered at the origin O. A square loop of side a(altltR) having two turns is placed with its centre at = root 3 R along the axis of hte circular wire loop, as shown in figure. The plane of the square loop [...]
A long circular tube of length 10 m and radius 0.3 m carries a current I along its curved surface as shown . A wire – loop of resistance 0.005 ohm and of radius 0.1 m is placed inside the tube its axis coinciding with the axis of the tube . The current varies as I = I0 cos ( 300 t ) where I0 is constant. If the magnetic moment of the loop is Nμ 0I0 sin( 300 t ), then ‘N’ is
27
Oct
A long circular tube of length 10 m and radius 0.3 m carries a current I along its curved surface as shown . A wire – loop of resistance 0.005 ohm and of radius 0.1 m is placed inside the tube its axis coinciding with the axis of the tube . The current varies as [...]
In the figure below , the switches s 1 and s 2 are closed simultaneously at t = 0 and a current starts to flow in the circuit. Bothe the batteries have the same magnitude of the electromotive force (emf ) and the polarities are as indicated in the figure.
24
Oct
In the figure below , the switches s 1 and s 2 are closed simultaneously at t = 0 and a current starts to flow in the circuit. Bothe the batteries have the same magnitude of the electromotive force (emf ) and the polarities are as indicated in the figure. In the figure below In [...]
A source of constant voltage V is connected to a resistance R and two ideal inductors L 1 and L 2 through a switch S as shown. There is no mutual inductance between the two inductors. The switch S is initially open. At t=0, the switch is closed and current begins to flow. Which of the following options is/are correct?
24
Oct
A source of constant voltage V is connected to a resistance R and two ideal inductors L 1 and L 2 through a switch S as shown. There is no mutual inductance between the two inductors. The switch S is initially open. At t=0, the switch is closed and current begins to flow. [...]
A conducting loop in the shape of a right angled isosceles triangle of height 10 cm is kept such that 90(∘) vertex is very close to an infinitely long conducting wire (see the figure). The wire is electrically insulated from the loop. The hypotenuse of the triangle is parallel to the wire. Current in the triangular loop is in counterclockwise direction and increased at a constant rate of 10 A/s. Which of the following statement(s) is(are) true?
24
Oct
A conducting loop in the shape of a right angled isosceles triangle of height 10 cm is kept such that 90(∘) vertex is very close to an infinitely long conducting wire (see the figure). The wire is electrically insulated from the loop. The hypotenuse of the triangle is parallel to the wire. Current in the [...]
An inductor of inductance L = 400 mH and resistors of resistances R1 = 2 Ω and R 2 = 2 Ω are connected to a battery of emf E=12V as shown in the figure. The internal resistance of the battery is negligible. The switch S is closed at time t = 0.
24
Oct
An inductor of inductance L = 400 mH and resistors of resistances R1 = 2 Ω and R 2 = 2 Ω are connected to a battery of emf E=12V as shown in the figure. The internal resistance of the battery is negligible. The switch S is closed at time t = 0. In the [...]
A certain volume of copper is drawn into a wire of radius a and is wrapped in shape of a helix having radius r(>>a). The windings are as close as possible without overlapping. Self inductance of the inductor so obtained is L1. Another wire of radius 2 a is drawn using same volume of copper and wound in the fashion as described above. This time the inductance is L2. Find L1/L2
24
Oct
A certain volume of copper is drawn into a wire of radius a and is wrapped in shape of a helix having radius r(>>a). The windings are as close as possible without overlapping. Self inductance of the inductor so obtained is L1. Another wire of radius 2 a is drawn using same volume of copper [...]
The diagram shows a circuit having a coil of resistance R=2.5(Ω) and inductance L connected to a conducting rod PQ which can slide on perfectly conducting circular ring of radius 10 cm with its centre at ‘P’. Assume that friction and gravity are absent and a constant uniform magnetic field of 5 T exist as shown in Fig.At t = 0, the circuit is switched on and simultaneously a time varying external torque is applied on the rod so that it rotates about P with a constant angular velocity 40rad/s. Find magnitude of this torque (in milli Nm) when current reaches half of its maximum value. Neglect the self-inductance of the loop formed by the circuit.
24
Oct
The diagram shows a circuit having a coil of resistance R=2.5(Ω) and inductance L connected to a conducting rod PQ which can slide on perfectly conducting circular ring of radius 10 cm with its centre at ‘P’. Assume that friction and gravity are absent and a constant uniform magnetic field of 5 T exist as [...]
In the given circuit , what is the current I ( in A ) drawn from battery at time t = 0 .
24
Oct
In the given circuit , what is the current I ( in A ) drawn from battery at time t = 0 . In the given circuit what is the current I ( in A ) drawn from battery at time t = 0 . October 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM [...]