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In-s [12.5K]
4 years ago
8

PLEASE ANSWER QUESTION 25! NOT 24. Brainliest and 25 points!

Physics
2 answers:
Inessa05 [86]4 years ago
5 0

D) Guard against a short circuit electrocuting a user.

"The 4-wire setup is inherently safer and better able to prevent electrical shock, which in the case of a 220/240-volt circuit can be fatal."

Citrus2011 [14]4 years ago
4 0

Answer:

the answer is D

Explanation:

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Fundamental quantities​
Yuki888 [10]

Answer:

The quantities which do not depend on other quantities is called fundamental qiantity. For eg; time,current,lwngth etc...

8 0
3 years ago
Question 16 of 20
ankoles [38]

Answer:

D

Explanation:

6 0
3 years ago
In a series circuit of two resistors, the resistors have the same __________; in a parallel circuit of two resistors, the resist
bekas [8.4K]

Answer:

current, voltage

Explanation:

Resistors can both be connected in series and parallel configuration. when a resistor is connected serially, the same amount of current flows through each resistor element but the voltage across each resistor is determined by the magnitude of the resistance of each resistor. However, in a parallel connection, the same voltage is applied across each resistor but different current.

8 0
4 years ago
Consider an electrical transformer that has 10 loops on its primary coil and 20 loops on its secondary coil. What is the current
rusak2 [61]

Answer:

C. 2.5 A

Explanation:

Transformer: A transformer is an electromechanical device that is used to change the voltage of an alternating current.

The current and the number of loops in a transformer is related as shown below

Ns/Np = Ip/Is........................... Equation 1

Where Ns = Secondary loop, Np = primary loop, Ip = primary current, Is = secondary current.

Making Is the subject of the equation

Is = NpIp/Ns........................ Equation 2

Given: Np = 10 loops, Ns = 20 loops, Ip = 5.0 A.

Substitute into equation 2

Is = (10×5.0)/20

Is = 50/20

Is = 2.5 A.

Hence the current in the primary coil = 2.5 A.

The right option is C. 2.5 A

6 0
3 years ago
Why is respiration an exothermic reaction? A. a large amount of energy is released into its surroundings B. the heat content, q,
Rina8888 [55]
A. a large amount of energy released into its surrounding

During the respiration, glucose molecules are converted to other molecules in a series of steps. They finally end up as as carbon-dioxide and water.

The overall reaction is

<span>C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + 2805 kJ
</span>
The reaction is exothermic reaction because <span>C=O and O-H bonds in the products are so much more stable than the bonds in the reactants.
</span>
Bond energy is the average needed to break a bond.

Some bond energies are:
C-C = 347 kJ/mol
C-H = 413kJ/mol;
C-O = 358 kJ/mol;
O-H = 467 kJ/mol;
O=O = 495 kJ/mol;
<span>C=O = 799 kJ/mol</span>



4 0
3 years ago
Read 2 more answers
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