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1. Two identical charges, each -8.00 x 10-5C, are separated by a distance of 25.0 cm. 2. What is the electric force exerted on a test charge of 3.86 x 10-5 C if it is placed in an electric field of magnitude 1.75 x 104N/C? 3. Find the resistance of 134 m of No. 20 copper wire at 20° C (ρ = 1.72 x 10-6Ω cm,A = 2.07 x 10-2 cm2). 4. What is the cost to operate a 100 W lamp continuously for one week when the power utility rate is 20 cents/kWh? 5. A 1000 W microwave, a 40.0 W fluorescent light bulb, and a 550 W computer are plugged into a 120 V parallel circuit. a. What is the current passing through each appliance in the parallel circuit? b. Find the resistance of each appliance. 6. A magnetic field can deflect a beam of electrons, but it cannot work on the electrons to change their speed. Why? 7. Find the magnetic field at 0.500 m from a long wire carrying a current of 7.5 A. 8. An auto mechanic wants to use a solenoid she found on a car starter. If the solenoid is 0.150m in length and has 750 turns of wire, what amount of current is required to produce a magnetic field of 1.50 x 10-3 T at its centre? 9. Write a paragraph to describe how a generator functions to generate power. Use common electromagnetic physics terms, such as induction, coil, and current. 10. Write a paragraph to describe the differences and similarities between a motor and a generator.
A flat circular coil with 171 turns, a radius of 5.85E-2 m, and aresistance of 0.373 Ω is exposed to an external magnetic fieldthat is directed perpendicular to the plane of the coil.
The rectangular metal loop in following figure has a resistance of 2? except the 0.5W, 0.1A bulb attached to it. What is the direction of current flow
FInd the quantities and volume of liquid in each tank and predicting the damage or danger caused in the process.
A tank contains 10.3 g of chlorine gas (Cl2) at a temperature of 79 °C and an absolute pressure of 5.16 105 Pa. How many grams of chlorine gas have leaked out of the tank
A resistor of 370 is connected in series with a capacitor of 52.0 µF capacitance. The phase shift between the current and voltage at f = 10.3 Hz is
A body is dropped from rest and falls freely. Determine the position and speed of the body after 1.0, 2.0, 3.0 and 4.0 s have elapsed
In a certain particle accelerator, protons travel around a circular path of diameter 20.5 m in an evacuated chamber, What is the mean free path of the gas molecules
in a serios accident,a nuclear power plant's reactor vessel cracks,and all of the cooling water drains out.although nuclear fission stops, how long will the melting take
a 4.0 kg block is pushed against a horizontal light spring with constant k 4.0x104 nm. when the spring is compressed
a toy balloon is filled with helium gas he at 1atm at 18 degrees c. if the volume of the balloon is 0.023m3 how many
a coyote on jet skates chases a road runner. the coyotes acceleration is a constant 15 ms. if the coyote is 120 from
only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. one force is 9.0 n acting due
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