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Problem 1: Power. What is the total rate of electrical energy dissipation of the resistors in the given circuit?
A. 12W
B. 8 W
C. 6 W
D. 4 W
Problem 2: Power Dissipation. A 5.00 ? bulb is connected across the terminals of a 10.0V battery with an internal resistance of 5.00 ?. What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb?
A. 9.09%
B. 0.0909%
C. 11.0%
D. 0.110%
Problem 3: Mega 800. A circuit contains a 1μF capacitor, an 8V emf source, and a 100 ? resistor connected in series. If the resistor was replaced with 10 ?, which of the following would happen?
I. The current in the circuit approaches zero more slowly.
II. The charge of the capacitor approaches its maximum value more quickly.
III. The power dissipated by the resistor approaches its maximum value more quickly.
A. II only
B. I and III only
C. II and III only
D. I, II and III
A proton of mass mp and charge qp =e, deuteron of mass 2mp and charge qd =e, Find the velocities and derive the radii of the paths for deuteron and alpha particle in term of the mass and charge of proton
a straight horizontal conducting rod of length 0.45 m and mass 60 g is suspended by two vertical wires at its ends. a
What is the frequency of the small axial oscillations that electron will undergo if it is released along the z-axis near the origin.
A technician wraps wire around a tube of length 33 cm having a diameter of 8.1 cm. If the current in this solenoid increases at the rate of 5 A/s, what is the self-induced emf in the solenoid
A certain particle has the life time of 10^-7 s, while measured at rest. How far does it go before decaying if its speed is 0.99 c when it is created.
Consider two projectiles launched on level ground with the same speed, at angles Π/4±. Find the ration of their flight times
A compound microscope in which the objective and eyepiece are 30.2 cm apart uses an objective lens with fobj = 1.0 cm, What is the magnification of the microscope
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The inner cylinder of radius a=3cm has a uniform linear charge density n=4.00E-10 C/m along the axis. The outer cylinder of radius b =6 cm has a uniform linear charge density -n along the axis.
An ?-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.38 106 V, What is the speed of the ?-particle
The ear canal can be viewed as a tube about 2cm long with the eardrum acting as a closed end. What is the resonance frequency of that tube
Oxygen and nitrogen are the two most common gasses in air. Both are diatomic. Knowing this, define why the spectrum of air is so complicated
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