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Assignment-5

Please show your work for each of these problems and include the formulas, calculations, and

all units of measure (kilo, micro etc.) with the correct symbol or term (ohms or  etc.).

1. A circuit has a current of 1560 mA and a voltage of 11 V. What is the resistance of the circuit?

2. Given the circuit of Figure-1, what is the total resistance RT?

Figure-1: Circuit # 1.

3. Select any true statements about the circuit of Figure-1.

a. This is a series circuit in which there is only one path for current to flow.

b. The current flowing through R1 is higher than the current through R2 and R3.

c. When resistances are connected in series, the total resistance in the circuit is equal to the sum of the resistances of all the parts of the circuit.

d. The current (I) is the same in all parts of the circuit.

4. Given the circuit of Figure-2, what is the total resistance RT?

Figure-2: Circuit # 2.

5. Select any true statements about the circuit of Figure-2.

a. This is a parallel circuit in which there is only one path for current to flow.

b. The overall resistance of the circuit decreases as the number of parallel paths increases.

c. The total resistance of equal resistors in parallel is equal to the resistance of one resistor divided by the number of resistors.

d. The current (I) is the same in all parts of the circuit.

6. Given the circuit of Figure-3, what is the total resistance RT?

Figure-3: Circuit # 3.

7. Select any true statements about the circuit of Figure-3.

a. This is a series/parallel circuit in which there is more than one path for current to flow.

b. If two resistors with the same resistance are connected in parallel, the equivalent resistance is half of that value.

c. RT=R1+R2+R3.

d. When any two unequal resistors are in parallel, it is often easier to calculate the total resistance by multiplying the two resistances and then dividing the product by the sum of the resistances.

8. The circuit of Figure-4 has the following resistances Ω and voltage V. Find the total resistance RT, the total current IT, the current (I) through each resistor (R1, R2 & R3) and the voltage (V) through each resistor.

Figure-4: Circuit # 4.

9. Post Lab Assignments: Provide your answers to the post lab assignments.