Physics-
General
Easy
Question
There is an arial 1 m long in a car. It is moving from east to west with a velocity of 100 km. If the horizontal component of earth’s magnetic field is 0.18 gauss, this induced emfis nearly
- 0.5 Mv
- 0.25 mV
- 0.75 mV
- 1 mV
The correct answer is: 0.5 Mv
V
= 0.5 mV
Related Questions to study
Physics-
As shown in the figure, and are two coaxial conducting loops separated by some distance. When the switch is closed, a clockwise current flows in (as seen by ) and an induced current flows in . The switch remains closed for a long time. When is opened, a current flows in . Then the directions of and (as seen by ) are
As shown in the figure, and are two coaxial conducting loops separated by some distance. When the switch is closed, a clockwise current flows in (as seen by ) and an induced current flows in . The switch remains closed for a long time. When is opened, a current flows in . Then the directions of and (as seen by ) are
Physics-General
Physics-General
Physics-
From an inclined plane two particles are projected with same speed at same angle , one up and other down the plane as shown in figure. Which of the following statements is/are correct?
From an inclined plane two particles are projected with same speed at same angle , one up and other down the plane as shown in figure. Which of the following statements is/are correct?Physics-General
Physics-General
Physics-
A body of mass 1 kg is rotating in a vertical circle of radius 1m. What will be the difference in its kinetic energy at the top and bottom of the circle? (Take )
A body of mass 1 kg is rotating in a vertical circle of radius 1m. What will be the difference in its kinetic energy at the top and bottom of the circle? (Take )
Physics-General
Physics-
Two particles 1 and 2 are projected with same speed as shown in figure. Particle 2 is on the ground and particle 1 is at a height from the ground and at a horizontal distance from particle 2. If a graph is plotted between and for the condition of collision of the two then ( on -axis and on -axis
Two particles 1 and 2 are projected with same speed as shown in figure. Particle 2 is on the ground and particle 1 is at a height from the ground and at a horizontal distance from particle 2. If a graph is plotted between and for the condition of collision of the two then ( on -axis and on -axisPhysics-General
Physics-General
Physics-
A wheel of radius 1m rolls forward half a revolution on a horizontal ground. The magnitude to the displacement of the point of the wheel initially in contact with the ground is
A wheel of radius 1m rolls forward half a revolution on a horizontal ground. The magnitude to the displacement of the point of the wheel initially in contact with the ground is
Physics-General
Physics-
A bullet fired at an angle of with the horizontal hits the ground 3 km away. By adjusting its angle of projection, one can hope to hit a target 5 km away. Assume the muzzle speed to be same and the air resistance is negligible
A bullet fired at an angle of with the horizontal hits the ground 3 km away. By adjusting its angle of projection, one can hope to hit a target 5 km away. Assume the muzzle speed to be same and the air resistance is negligible
Physics-General
Physics-
A particle is moving in a circle of radius with constant speed , if radius is double then its centripetal force to keep the same speed should be
A particle is moving in a circle of radius with constant speed , if radius is double then its centripetal force to keep the same speed should be
Physics-General
Physics-
The average acceleration vector for a particle having a uniform circular motion is
The average acceleration vector for a particle having a uniform circular motion is
Physics-General
Physics-
A particle moves in a circle with a uniform speed. When it goes from a point to a diametrically opposite point , the momentum of the particle changes by and the centripetal fore acting on it changes by N where and are unit vectors along and axes respectively. The angular velocity of the particle is
A particle moves in a circle with a uniform speed. When it goes from a point to a diametrically opposite point , the momentum of the particle changes by and the centripetal fore acting on it changes by N where and are unit vectors along and axes respectively. The angular velocity of the particle is
Physics-General
Physics-
A curved road of diameter 1.8 km is banked so that no friction is required at a speed of . What is the banking angle?
A curved road of diameter 1.8 km is banked so that no friction is required at a speed of . What is the banking angle?
Physics-General
Physics-
A body is projected vertically upwards at time and it is seen at a height at instants and seconds during its flight. The maximum height attained is is acceleration due to gravity
A body is projected vertically upwards at time and it is seen at a height at instants and seconds during its flight. The maximum height attained is is acceleration due to gravity
Physics-General
General
If
If
GeneralGeneral
Physics-
A projectile is projected with kinetic energy . If it has the maximum possible horizontal range, then its kinetic energy at the highest point will be
A projectile is projected with kinetic energy . If it has the maximum possible horizontal range, then its kinetic energy at the highest point will be
Physics-General
Physics-
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of . What is the height of the plane of circle from vertex of the funnel
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of . What is the height of the plane of circle from vertex of the funnel
Physics-General
Physics-
Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is , then the ratio of tensions in the three sections of the string is
Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is , then the ratio of tensions in the three sections of the string isPhysics-General
Physics-General