I just wanna know how to solve these problems and what formula to use

1. If a capacitor is rated for 200Volts dc, what is its effective ac working voltage?

a. 50V

b. 200V

c. 100V

d. 400V

2. Suppose a 1-kΩ resistor will dissipate 1.05W, and you have many 1-W resistors of all common values. If there's room for 20 percent resistance error, the cheapest solution is to use:

A. Four 1 kΩ, 1-W resistors in series-parallel

B. Two 2.2kΩ, 1-W resistors in parallel

C. Three 3.3kΩ, 1-W resistors in parallel

D. One 1kΩ, 1-W resistor, since manufacturers allow for a 10 percent margin of safety

1. If a capacitor is rated for 200Volts dc, what is its effective ac working voltage?

a. 50V

b. 200V

c. 100V

d. 400V

2. Suppose a 1-kΩ resistor will dissipate 1.05W, and you have many 1-W resistors of all common values. If there's room for 20 percent resistance error, the cheapest solution is to use:

A. Four 1 kΩ, 1-W resistors in series-parallel

B. Two 2.2kΩ, 1-W resistors in parallel

C. Three 3.3kΩ, 1-W resistors in parallel

D. One 1kΩ, 1-W resistor, since manufacturers allow for a 10 percent margin of safety

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