Science and principles RA 03

What is the total resistance of 4 resistors 24 ohms each connected in series

• 6 ohms

• 96 ohms

• 6 amps

• 96 volts

What is the total resistance of 4 resistors 24 ohms each when they are connected in parallel

• 6 amps

• 6 ohms

• 96 ohms

• 96 volts

Which of the following statements are correct when 4 different value resistors are connected...

• ..in parallel, they have the same voltage

• ... in parallel, they have the same current

• ... in series they have the same voltage

• ... in series they have the same current

The power dissipated in a circuit connected to a 230 V supply that draws 5 amps is

• 46 Watts

• 235 Volt Amps

• 1150 Watts

Select the correct statements

• Current is equal in a parallel circuit

• Current is constant in a series circuit

• Voltage is equal in a parallel circuit

• Voltage is equal in a series circuit

When calculating the resistance of a length of cable, the total resistance...

• Will decrease with an increase in length

• Will increase if the area decreases

• Will increase with an increase in length

• Will increase if the area increases

Four field coli's of a motor are connected in series. Each resistor has a resistance of 33.4 ohms. (A) calculate the total resistance and (B) what other value resistor would need to be connected to increase the resistance to 164 ohms

• (A) 164 and (B) 33.4

• (A) 8.35 and (B) 133.6

• (A) 133.6 and (B) 30.4

• (A) 133.6 and (B) 8.35

Which of the following is the total current of a parallel connected resistors with a value of 18Ω and 12Ω each, when connected to a 36 V supply

• 1.2A

• 5 A

• 0.83A

• 76A

When two resistors (R1) 10Ω and (R2) 20Ω are connected in parallel, the current in each resistor will be:

• Higher In R1

• Higher in R2

• The same in both

• Split equally

The power dissipated in a circuit is:

• Directly proportional to the amount of Resistance

• Directly proportional to the Current

• Inversely proportional to the Voltage

• Does not relate to I, V or R