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Derive an expression for the transfer function of the circuit below (assume that no current flows to the output terminals AB).
The rectangular loop in the figure above moves towards the long straight wire with a velocity v. If a current I flows through the wire.
If a resistance of 50 is inserted in series with the shunt field, calculate the armature current required to maintain half full-load torque.
Plot the vo/vi transfer characteristic for the circuit for -50v s v, s +50v. Clearly annotate the graph showing all breakpoints and all significant values.
For the following circuit, find Vx, I1, and I2.Vx=5V, I1=0.5A, I2=0.5A Vx=10V, I1=0.5A, I2=1A.
In a two-cell flashlight, the batteries are usually connected in series. Why not connect them on parallel?
A store element draws 15 A when connected to a 130 V line. How long does it take to consume 30 kJ energy?
Next write two independent voltage loop equations by going around the left-hand block of the circuit and, separately.
If the electric current is zero at time t=0, determine the solution I(t) in terms of the given constants U,R, and L.
A circuit contains an electromotive force [E(t)], a capacitor with capacitance of C Farads, and a resistor with a resistance of R ohms.
Assume that the op-amps are ideal and that the magnitude of their output voltages is less than their maximum peak output voltage swing (VOM).
If the ratio of the power in the sidebands to the power in the carrier is four times that of the efficiency.
The voltage across Bulb D is 1.0 volt. The battery voltage is 6.0 V. Find the voltage drops across Bulbs A, B, and C.
A flat cirular coil having a diameter of 25 cm is to produce a B-field at its center of 1.00mT. If it has 100 turns, how much current.
With the battery still connected, the 3.5 uf cap is accidentally shorted out. As a result, what are the charge and voltage of the 5.0 uf cap?
A long straight wire carries a current of 31 A to the right. Next to the wire is a square loop with sides 1.0 m in length.
In a college homecoming competition, 16 students lift a sports car. While holding the car off the ground, each student exerts an upward force .
How does the current from the battery compare when the switch is open (and has been open for at least five minutes) and when the switch is closed.
For the circuit below, one such wire is connected directly across the power supply. What is the voltage drop (in V) across the wire?
Assuming that L = µ0N2A/l, where N = number of turns, A = cross-sectional area, and l = length, find the energy density of the magnetic field.
What is the current flowing through the resistor straight after the switch is closed? Explain your answer.
A uniform rectangular coil of total mass 270 g and dimensions 0.5m x 1.0m is oriented perpendicular to a uniform 3.90-T magnetic field (the figure).
The calculated results indicate that the Class A amplifier is an enormous power waster in comparison to a class B amplifier.
A potential divider is to supply a voltage of 10 V, constant to better than 10%, into a load which can draw current up to a maximum of 50 mA.
A light bulb operating a 110 V draws 1.82 A. Determine its resistance and the amount of power it draws.