Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the (a) total torque on the
A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north to south direc
What is the force per unit length between the wires if they are 70 cm long and 1.5 cm apart? Is the force attractive or repulsive?
What will be the total tension in the wires if the direction of current is reversed keeping the magnetic field same as before? (Ignore the mass of the wires.) g = 9.8 m s-2.
Determine the trajectory of the electron if the field (a) is transverse to its initial velocity, (b) makes an angle of 30º with the initial velocity.
A charged particle enters the chamber and travels undeflected along a straight path with constant speed. What can you say about the initial velocity of the particle?
Ignoring viscosity, calculate the difference between the fluid pressure at location 2 and the fluid pressure at location 1.
The sense of the current in X is anticlockwise, and clockwise in Y, for an observer looking at the coils facing west. Give the magnitude and direction of the net magnetic field due to the coils at t
The field lines make an angle of 60º with the normal of the coil. Calculate the magnitude of the counter torque that must be applied to prevent the coil from turning.
An electron is shot into the field with a speed of 4.8 × 106 m s-1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit. (e = 1.6 &t
How do the phase angle and current change as the resistance changes in a circuit where the frequency stays constant? How do these results differ from those in the case where the resistance stays the
The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30º with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitu
Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direction are separated by a distance of 4.0 cm. Estimate the force on a 10 cm section of wire A.
A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T. What is the magnetic force on the wire?
What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30º with the direction of a uniform magnetic field of 0.15 T?
An automatic external defibrillator delivers 125J of energy at a voltage of 1050V. What is the capacitance of this device?
At time t = 0 the point at x = 0 has a displacement of 0 and is moving in the +y direction. Find the phase constant of this wave.
How much kinetic energy Kair did the air molecules gain from the falling coffee filter? The temperature change of the coffee filter is negligible.
What is the angular frequency of the charge oscillations in the capacitor after the switch is closed?
A horizontal spring-mass system has low friction, spring stiffness 185 N/m, and mass 0.3 kg. The system is released with an initial compression of the spring of 9 cm and an initial speed of the mass
The top of a tower much like the leaning bell tower at Pisa, Italy, moves toward the south at an average rate of 1.5 mm/y. The tower is 51 m tall. In radians per second, what is the average angular
Taking the water as the system, what was the energy change of the surroundings?
How much current would the inductor mentioned in part A have to carry to store 0.90 J of energy?