All categories

3 years ago

What is the current in a 60.0 Ï resistor when the potential difference across it is 120.0 v?

1 answer:

6 0

The ohms law states that he potential difference of a current carrying conductor is proportional to the current and the resistance is constant.
therefore; mathematically; V = IR where V is the voltage , I is the current and R is the resistance in the conductor.
Making I the subject we get I=V/R
Therefore to get current we divide voltage by the resistance
I = 120 ÷ 60 = 2 Ampheres
Therefore the current is 2 Ampheres

You might be interested in

If a car travels 30 mi. north for 30 min., 60 mi. east for 1.0 hour, and 30 mi. south for 30 min., what is the average speed of

Virty [35]

60 mph is your answer

4 0

3 years ago

A thunderclap sends a sound wave through the air and the ocean below. The

marysya [2.9K]

Answer:

C. 14.93 m

Explanation:

The given frequency of the wave, f = 100 Hz

The given equation for the wave speed, <em>v</em>, is presented as follows;

v = f × λ

The speed of sound in water, v = 1,493 m/s

Therefore, we get;

The wavelength, λ = v/f

∴ λ = 1,493 m/s/(100 Hz) = 14.93 m

The wavelength, λ = 14.93 m.

8 0

3 years ago

two forces 3N and 4N act on 20kg mass. calculate the magnitude of the resultant force if the angle between the two forces is 60°

SCORPION-xisa [38]

Explanation:

In the picture.

I hope that it's a clear solution.

6 0

3 years ago

Read 2 more answers

A student is about to sled down a hill. He stands on a hill which is 30 meters tall and he weighs 40kg what is his GPE

PolarNik [594]

Answer:

11760J

Explanation:

Given parameters:

Height of hill = 30m

Weight = 40kg

Unknown:

Gravitational potential energy = ?

Solution:

To find the gravitational potential energy, it is the energy due to the position of a body;

G.PE = mgh

m is the mass

g is the acceleration due to gravity

h is the height

Now insert the parameters and solve;

G.PE = 40 x 9.8 x 30 = 11760J

3 0

3 years ago

Workshop:The analysis of a simple pendulum assumed that the mass was a particle, with no size. A realistic pendulum is a small,

bagirrra123 [75]

Answer:

The expression for the period of the pendulum is

T=2π√l/g

Explanation

Kindly find attached document for the analysis of the pendulum and the derivation for the period

What is a simple harmonic motion?

Simple harmonic motion is defined as the to and fro motion of an object or a particle whose acceleration is directly proportional to its displacement from a fixed point and is always directed towards that point.

4 0

4 years ago