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Snowcat [4.5K]
4 years ago
8

Which is correct about an ammeter?

Physics
1 answer:
s344n2d4d5 [400]4 years ago
3 0

Answer:

b. The internal resistance must be much smaller than the other resistances in the circuit.

Explanation:

Ammeter is used to measure the current flowing through a circuit. It is connected in series configuration with the load. In such a scenario the resistance of the ammeter should be negligible so as to make sure that the voltage drop across the resistance of ammeter is zero and it shows the correct reading of the current in the circuit.

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Newtons third law of motion states that if a force is exerted on an object, another force occurs that, A. is equal in speed and
Deffense [45]

Answer:

Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.

Explanation:

8 0
4 years ago
Q = cmAT
castortr0y [4]

Answer: Q=3000 cal

Explanation:

We are given the following formula:

Q=m. c. \Delta T   (1)

Where:

Q=3000 cal is the amount of heat

m=300g  is the mass  of water

c=1 cal/g \°C  is the specific heat of water

\Delta T  is the variation in temperature, which in this case is  \Delta T=30\°C-20\°C=10\°C  

Rewriting equation (1) with the known values at the right side, we will prove the result is 3000 cal:

Q=(300g)(1 cal/g \°C)(10\°C)   (2)

Q=3000 cal   This is the result

8 0
3 years ago
If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V the current flowing through the circu
kap26 [50]
Current= V/R 
C=60 volts/12 ohms
C= 5 amperes 

Hope I helped :)
5 0
4 years ago
Read 2 more answers
The diagram shows movement of thermal energy. At bottom a fire has red curved lines labeled Y with arrowheads pointing upward to
Pepsi [2]

Answer:

X and Z

Explanation:

Conduction occurs through direct physical contact.  Heat transferred from the pot to the handle, and from the handle to the hand, are both examples of conduction.

6 0
3 years ago
Read 2 more answers
Yes ples omggggggggg
Alexxx [7]

Answer:

The answer is A.

Explanation:

They both work together to circulate oxygen and blood throughout the body.

3 0
3 years ago
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