A 5.0 microF capacitor and a resistor are connected in series to a 12V battery with...

A 5.0 microF capacitor and a resistor are connected in series to a 12V battery with an open switch on a simple RC circuit. The switch is closed when t = 0. The time constant in the circuit is 4.0 s. Determine the value of the resistance.

a. 8.0x10 ^ 5 ohm

b. 8.0x10 ^ 8 ohm

c. 8.0x10 ^ 7 ohm

d. 60 ohm

e. 15 ohm

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A proton and an electron enter a region of the uniform magnetic field with a velocity oriented perpendicular to the field. Determine which of the following statements describes the circular orbits of the two particles.

to. The two orbits have the same radius but different direction.

b. The two orbits have the same radius and the same direction.

c. The two orbits have a different radius but the same direction.

d. The two orbits have different radii and different directions.

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An electron travels rapidly 3.5x10 ^ 5 m / s when a magnetic field of 0.60 T is found. The direction of the magnetic field forms an angle of 60 degrees with respect to the speed of the electron. Determine the magnitude of the force on the electron.

a. 3.4x10 ^ -14 N

b. 1.7x10 ^ -13 N

c. 2.9x10 ^ -14 N

d. 3.2x10 ^ -13 N

e. 4.9x10 ^ -13 N

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genius_generous answered 1 year ago

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