Holooly Plus Logo
Holooly Plus Logo

Question 1.9: A current of 7.25 mA flows in a circuit. Express this curren...

A current of 7.25 mA flows in a circuit. Express this current in amperes using exponent notation.

The "Step-by-Step Explanation" refers to a detailed and sequential breakdown of the solution or reasoning behind the answer. This comprehensive explanation walks through each step of the answer, offering you clarity and understanding.
Our explanations are based on the best information we have, but they may not always be right or fit every situation.
The blue check mark means that this solution has been answered and checked by an expert. This guarantees that the final answer is accurate.
Learn more on how we answer questions.
This Question has been Answered.
Subscribe
Already have an account?
Login

Related Answered Questions

Question: 1.16

A voltage drop of 15 V appears across a resistor in which a current of 1 mA flows. What is the value of the resistance? ...

Verified Answer:

R = V / I = 15 V / 0.001 A = 15,000 Ω = 15...
Question: 1.15

A current of 100 mA flows in a 56 Ω resistor. What voltage drop (potential difference) will be developed across the resistor? ...

Verified Answer:

Here we must use V = I × R and en...
Question: 1.26

A coil of 800 turns is wound on a closed mild steel core having a length 600 mm and cross-sectional area 500 mm² . Determine the current required to establish a flux of 0.8 mWb in the core. ...

Verified Answer:

Now B = Φ /A = (0.8 × 10^{−3}) / (500 × 10...
Question: 1.25

Estimate the relative permeability of cast steel (see Fig. 1.18) at (a) a flux density of 0.6 T and (b) a flux density of 1.6 T. ...

Verified Answer:

From Fig. 1.18, the slope of the graph at any poin...
Question: 1.24

A flux density of 2.5 mT is developed in free space over an area of 20 cm². Determine the total flux. ...

Verified Answer:

Re-arranging the formula B=\Phi /A [/latex...
Question: 1.23

Determine the flux density produced at a distance of 50 mm from a straight wire carrying a current of 20 A. ...

Verified Answer:

Applying the formula B=\mu _0 \ I /2\pi \ ...
Question: 1.22

Two parallel conductors are separated by a distance of 25 mm. Determine the electric field strength if they are fed from a 600 V d.c. supply. ...

Verified Answer:

The electric field strength will be given by: [lat...
Question: 1.21

A current of 20 mA flows in a 1 kΩ resistor. What power is dissipated in the resistor? ...

Verified Answer:

Here we use P = I^2  × R but, to ...
Question: 1.20

A voltage drop of 4 V appears across a resistor of 100 Ω. What power is dissipated in the resistor? ...

Verified Answer:

Here we use P = V ^2 / R (\text { where } ...
Question: 1.19

A current of 1.5 A is drawn from a 3 V battery. What power is supplied? ...

Verified Answer:

Here we must use P = I × V (where...