POE-Electricity and Statics Part 1

What is the difference between Series and Parallel circuits?

• Series circuits can only have one component (light or resistor) and a parallel circuit can have more than one.

• Series circuit has one path for the electricity to follow and parallel circuits have more than one.

• Series circuits use more electricity than parallel circuits.

• Parallel circuits use more electricity than series circuits.

Which formula is used to calculate total resistance for a parallel circuit?

• $R_T=\frac{1}{\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}...}$

• $R_T=R_1+R_2+R_3...$

• $R_T=\frac{1}{R_1+R_2+R_3\ ...}$

Calculate the total resistance for the series circuit. Round to the nearest WHOLE NUMBER. Just write the number.

What is the total current for the circuit? Round to the nearest 1/1000. That means you should have 3 digits behind the decimal.

What is the voltage across the 300 ohm resistor? Use your rounded answer from the current question. Your answer should be rounded to the nearest tenth.

Find the Y value for the compound shape. Use 3 for Pi.

 $A_c=\pi r^2$  , $\overline{y}=\frac{4r}{3\pi}$  , $\overline{y_t}=\sum_{ }^{ }\frac{\overline{y_1}A_{1\ }+\overline{y_2}A_2}{A_1+A_2}$  

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