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dmitriy555 [2]
4 years ago
8

A power source supplies a prescribed voltage and is used to power a light bulb if another light bulb is connected in series to t

he first how would it affect the current in the power source?.
Physics
2 answers:
pychu [463]4 years ago
8 0
<span>The current from the power source will not change when the second light bulb is attached. This is because the current is kept on a single path, it will return to the power source at the same value it left the source at.</span>
alexira [117]4 years ago
6 0

Answer: It would decrease.

Explanation:

From Ohm's law:

I = V/R

I = current

V = voltage

R = Resistance

The power source supplies a fixed voltage (V). Let the resistance of each light bulb be R.

When a light bulb is connected across voltage V, current I = V/R flows in the circuit.

When another bulb is added in series, the net resistance increases:

R' = R + R = 2 R

Because of increase in resistance, the current drawn in circuit decreases.

⇒ I' = V/2 R = I/2

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an electric clothes dryer has a resictance of 16 Ohms it drawes 15 A of current what is the voltage in volts of the wall outlet
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In 1869, Dmitri Mendeleev was trying to arrange the 65 known elements in a logical way. He arrived at the solution when he saw t
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Creative thinking

Explanation:

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3 0
3 years ago
1 A football player runs directly down the field for 35 m before turning to the right at
ehidna [41]

Answer:

The magnitude of displacement is 56.54 m

The direction of the displacement is along the line joining the two vectors.

Explanation:

The resultant displacement is always the line joining the initial and final position of the vectors.

As in figure,

              the vector AB = 35 m

              the vector BC =  15 m

              the angle between AB and AC = 25'  (minutes)

              the resultant vector AC = ?

The resultant vector is given by the formula

             AC² = AB² + BC² + 2 AB BC Cos θ

Substituting the values in the equations,

             AC²  = 35² + 15² + 2 x 35 x 15 x Cos 25'

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Therefore, the magnitude of displacement is 56.54 m

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7 0
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Read 2 more answers
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