Rakesh Yadav
Rakesh Yadav
  • 608
  • 51 653

Відео

Magnetic flux (in weber) in a closed circuit of resistance 20Ω varies with time t(s) as Φ=8t-9t+5
Переглядів 27Місяць тому
Recorded with screenpal.com
A part of a complete circuit is shown in the figure. At some instant, the value of| jee and neet pyq
Переглядів 48Місяць тому
Recorded with screenpal.com
As per the given figure, If dI/dt = -1 A/s then the value of VAB at this instant will be
Переглядів 61Місяць тому
Recorded with screenpal.com
A coil of inductance 2 H having negligible resistance is connected to a source of supply whose
Переглядів 44Місяць тому
Recorded with screenpal.com
In the given figure the magnetic flux through the loop increases according to the relation
Переглядів 25Місяць тому
Recorded with screenpal.com
A 10Ω, 20 mH coil carrying constant current is connected to a battery of 20 V
Переглядів 87Місяць тому
Recorded with screenpal.com
A circular coil of 1000 turns each with area 1m is rotated about its vertical diameter
Переглядів 82Місяць тому
Recorded with screenpal.com
An emf of 0.08 V is induced in a metal rod of length 10 cm held normal to a uniform
Переглядів 38Місяць тому
Recorded with screenpal.com
A 12 V battery connected to a coil of resistance 6 Ω through a switch, drives a constant current
Переглядів 30Місяць тому
Recorded with screenpal.com
A coil is placed perpendicular to a magnetic field of 5000 T. When the field is changed to 3000 T
Переглядів 26Місяць тому
Recorded with screenpal.com
When the current changes from + 2 A to − 2 A in 0.05 second, an e.m.f. of 8 V is induced in a coil
Переглядів 65Місяць тому
Recorded with screenpal.com (Recorded with screenpal.com)
Three blocks A, B and C are pulled on a horizontal smooth surface by a force of 80 N
Переглядів 28Місяць тому
Recorded with screenpal.com
A block of mass 5 kg is placed at rest on a table of rough surface. Now, if a force of 30N
Переглядів 69Місяць тому
Recorded with screenpal.com
Consider a block and trolley system as shown in figure. If the coefficient of kinetic friction
Переглядів 44Місяць тому
Recorded with screenpal.com
A sliver wire has mass (0.6 ± 0.006) g, radius (0.5 ± 0.005) mm and length (4 ± 0.04)cm
Переглядів 44Місяць тому
A sliver wire has mass (0.6 ± 0.006) g, radius (0.5 ± 0.005) mm and length (4 ± 0.04)cm
10 divisions on the main scale of a Vernier calliper coincide with 11 divisions on the Vernier
Переглядів 45Місяць тому
10 divisions on the main scale of a Vernier calliper coincide with 11 divisions on the Vernier
If ε0 is the permittivity of free space and E is the electric field, then ε0E has the dimensions
Переглядів 47Місяць тому
If ε0 is the permittivity of free space and E is the electric field, then ε0E has the dimensions
The de-Broglie wavelength associated with a particle of mass m and energy E is h/root 2mE
Переглядів 47Місяць тому
The de-Broglie wavelength associated with a particle of mass m and energy E is h/root 2mE
The number of electrons flowing per second in the filament of a 110 W bulb operating at 220 V is
Переглядів 87Місяць тому
The number of electrons flowing per second in the filament of a 110 W bulb operating at 220 V is
If 2.5 × 10 -6 N average force is exerted by a light wave on a non-reflecting surface of 30 cm2
Переглядів 73Місяць тому
If 2.5 × 10 -6 N average force is exerted by a light wave on a non-reflecting surface of 30 cm2
A plane electromagnetic wave with frequency of 30 MHz travels in free space
Переглядів 26Місяць тому
A plane electromagnetic wave with frequency of 30 MHz travels in free space
Nearly 10% of the power of a 110 W light bulb is converted to visible radiation.
Переглядів 84Місяць тому
Nearly 10% of the power of a 110 W light bulb is converted to visible radiation.
A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient
Переглядів 17Місяць тому
A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient
When an object is kept at a distance of 30 cm from a concave mirror, the image
Переглядів 582 місяці тому
When an object is kept at a distance of 30 cm from a concave mirror, the image
Two identical thin biconvex lens of focal length 15 cm and refractive index 1.5
Переглядів 852 місяці тому
Two identical thin biconvex lens of focal length 15 cm and refractive index 1.5
A point object in air is in front of the curved surface of a plano-convex lens
Переглядів 522 місяці тому
A point object in air is in front of the curved surface of a plano-convex lens
A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15 cm
Переглядів 392 місяці тому
A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15 cm
A bi convex lens of focal length 10 cm is cut in two identical parts along a plane perpendicular
Переглядів 602 місяці тому
A bi convex lens of focal length 10 cm is cut in two identical parts along a plane perpendicular
Three rays of light, namely red (R),green (G)and blue (B) are incident on the face PQ at right angle
Переглядів 732 місяці тому
Three rays of light, namely red (R),green (G)and blue (B) are incident on the face PQ at right angle

КОМЕНТАРІ