Two lamps rated 60W; 240V and 100W, 240Vrespectively are connected in series to a 240V power source. Calculate; a) The resistance of each lamp.
b) The effective resistance of the circuit.
c) The current passing the lamps. pls answer correctly

See the answers below.

Explanation:

The total power of the circuit is equal to the sum of the powers of each lamp.

Now we have a voltage source equal to 240 [V], so by means of the following equation we can find the current circulating in the circuit.

where:

P = power [W]

V = voltage [V]

I = current [amp]

So this is the answer for c) I = 0.67 [amp]

We know that the voltage of each lamp is 240 [V]. Therefore using ohm's law which is equal to the product of resistance by current we can find the voltage of each lamp.

a)

where:

V = voltage [V]

I = current [amp]

R = resistance [ohms]

Therefore we replace this equation in the first to have the current as a function of the resistance and not the voltage.

b)

The effective resistance of a series circuit is equal to the sum of the resistors connected in series.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

f is prop to m1xm2 double m1 double force