Answer the following questions in one sentence each:
1)
What does an atom consist of?
3)
4)
2) State in whose honour the SI unit of electric charge is named.
State the relation between the SI units of electric current, electric charge
State the relation between the ohm, the volt and the ampere.
5) State the relation between the joule, the coulomb and the volt.
6)
State the relation between the second, the joule and the watt.
7) I measure the rate of flow of charge through a conductor. Who am I?
8) What can you say about the resistance of an ammeter?
9) What can you say about the resistance of a voltmeter?
10) What will happen if an ammeter of high resistance is connected in
Answers
Answer:
The answer may be......
Explanation:
1.Atoms consist of a nucleus made of protons and neutrons orbited by electrons.
2.coulomb
##. The relationship between the voltage (V), resistance (R), and current (I) is V=IR; this is known as Ohm's law. An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region.
##.Voltage is measured in volts, current is measured in amps and resistance is measured in ohms. ... It says that the current is equal to the voltage divided by the resistance or I = V/R. This is known as Ohm's law. Let's see how this relation applies to the plumbing system.
5.1 coulomb = the amount of electrical charge in 6.24 x 10^18 electrons. Joules = a measure of energy. Voltage is the amount of energy (J) per unit charge (C). 1 volt is exactly 1 joule of energy done by 1 coulomb of charge (1J/C).
6.If it done in one second, it is one watt of power. A Joule is a unit related to energy or work performed on a system. A Watt is a unit of power or the rate which energy is consumed per unit time. E = (100 J/s)(3600 seconds) = 360 kiloJoules of energy consumed.
7. Current
8.Just like voltmeters, ammeters tend to influence the amount of current in the circuits they're connected to. However, unlike the ideal voltmeter, the ideal ammeter has zero internal resistance, so as to drop as little voltage as possible as current flows through it.
9.Voltmeter has high resistance because it measures the voltage difference between two different points, but it should not change the amount of current going through the element between those two points . So, it should have high resistance .
10. if voltage is connected in series then due to high resistance no current will flow through circuit so no voltage drop occur. ... and if ammeter is connected in parallel due to low resistance it will act like short circuit so chances of ammeter get damaged is high.
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