As additional resistors are connected in series to a constant voltage source, how is the power supplied by the source affected?

Physics

2 answers:

Furkat [3]4 years ago

7 0

Answer:

(D) The power supplied by the source decreases.

Explanation:

If additional resistors are connected in series, then the total resistance of the circuit is increased. By the Ohm’s Law, V = iR, the current decreases.

The power supplied by the source is P = i*i*R = i*(i*R). The term in the parenthesis is the voltage of the circuit and is constant. The ‘i’ outside decreases, therefore the power supplied by the source decreases.

stepan [7]4 years ago

6 0

Answer:

(D) the power supplied by the source decreases

Explanation:

V = IR

- VOLTAGE remains same, increase in resistance causes decrease in current flowing.

P = $\frac{V^{2} }{R}$

- increase in denominator (R) decreases the power.

You might be interested in

Given that the efficiency of heating your room is roughly 35%, what mass of natural gas is actually necessary to heat your room

Mrac [35]

Answer:

Mass of natural gas needed to heat the room is 350,000BTUs

Explanation:

The heating efficiency of a furnace is never 100% because not all energy is released and not all heat is available to heat the place. A lesser efficiency requires more consumption of fuel. Heating values are used for heating fuels in order to calculate the mass of fuel needed.

The heating value of natural gas is 1,000,000BTUs

Therefore the formular for calculating mass of natural gas needed= Heating value of natural gas×efficiency.

Mass=1,000,000×0.35

Mass=350,000BTUs

3 0

3 years ago

If net force is zero, the what will be constant.

vodomira [7]

Answer:

The ans is velocity

Explanation:

Hope it helps you