Physics-electricity

Unit of measuring Ampers

• Ω

• A

• I

• R

Unit for measuring resistance is

• Ohms Ω

• Ω

• R

• Z

Unit for measuring voltage

• Ω

• V

• A

• Q

Unit of measuring electro magnetic force

• N

• Mf

• M

• F

Potential difference in volts is measured in

• Potential difference

• Volts

• Current

V=IxR

• False

• True

when a switch os closed, ammeter reading is 2.4A. If the resistance of the circuit 3Ω, calculate the amount of voltage in the circuit.

The pad across a lamp is 3v and the current is 0.15A calculate the amount resistance of a lamp

What are the two types of circuit

• Series/epidermis

• Series/congruent

• Congruent/parallel

• Series/parallel

Advantages of series circuit

• It’s is simple

  Bulb breaks fast

• Doesn’t ’t overheat easily

  Simple to construct

• Lamps controlled individually