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The unit of electric potential difference between two points is?
You can compare 'potential' with height, and 'potential difference' with the difference in height.The height of an object depends upon from where you measure it. For example an object three-quarters of the way up a 1000 m mountain is +750 m from the base of the mountain, but -250 m from the top of the mountain. Note how we apply a positive or a negative sign to indicate whether we are measuring upwards or downwards.The same applies to potential. It's value depends upon from where it is measured. For example, two charged objects could have a potential of , say, +5 V with respect to earth (ground) and a potential of -15 V with respect to earth. But the potential difference between them will be +5 - (-15) = 20 V.Notice how, in the above example, we always show a positive or negative sign when we talk about potential, but we don't use these signs when we talk about a potential difference. Furthermore, it is important that we must ALWAYS specify the reference point when we describe potential -e.g. "What is the potential at point A, with respect to (say) earth?"Taking this further. It's important to know that the term 'voltage' means 'potential difference', and not'potential'! It would be quite wrong to say that the 'voltage of an object is (say) -200 V with respect to earth'. The correct expression would be the 'potential of an object is -200 V with respect to earth'.
What is the importance of standard units in daily life?
standard unit is very important because it contains the same value,quantity and ect all over the world
How is motion demonstratd with snowboarding?
Snowboarding demonstrates speed, velocity, and acceleration. It can also demonstrate a positive or negative value for velocity and acceleration.
How do you write twenty-seven thousandths in standard form?
Twenty-seven thousandths (0.027) in standard form is: 2.7 × 10-2
What is the Literature ka value of salicylic acid?
Salicylic acid is also known as 2-Hydroxybenzoic acid. The literature Ka value is 2x10 to the negative 14th power. Which makes salicylic acid a somewhat strong acid.
Why the dc average voltage is having negative value?
Voltage is synonymous with 'potential difference', and cannot have a positive or negative value (in the sense of charge). So what you are describing is 'potential', which can. So, for example, a battery whose positive terminal is earthed or grounded will indicate a negative potential if a voltmeter is connected between earth and its negative terminal.
What does a negative pH value indicate in terms of the acidity or alkalinity of a substance?
A negative pH value indicates that a substance is highly acidic.
Is it possible for gravitational potential energy to have a negative value?
Yes, gravitational potential energy can have a negative value when an object is located below a reference point, such as the ground level.
What does it indicate when the value of G is negative in a chemical reaction?
When the value of G is negative in a chemical reaction, it indicates that the reaction is spontaneous and releases energy.
What does the negative sign on the value of an enthalpy of formation indicate?
A negative enthalpy of formation indicates that energy is evolved.
Is it possible for potential energy to have a negative value?
Yes, it is possible for potential energy to have a negative value. This can occur when the reference point for measuring potential energy is set at a higher level than the actual position of the object.
Can The standard deviation of a distribution be a negative value?
No. The standard deviation is not exactly a value but rather how far a score deviates from the mean.
Why inductance value is negative?
Inductance is not negative. It is measured in henrys, and that is a positive value. Inductive reactance, however, is measured in ohms, and is commonly shown as negative to indicate that the current lags the voltage.
Can standard deviation value be less than 01?
Yes, it can have any non-negative value.
What does a negative z-score mean?
z-score of a value=(that value minus the mean)/(standard deviation). So if a value has a negative z-score, then it is below the mean.
What is the standard electrode potential of Nitrate?
The standard electrode potential of nitrate (NO3-) is +0.96 V. This value is for the reduction half-reaction of nitrate to nitrite under standard conditions.
Can Standard Deviation be greater than 100?
Yes. It can have any non-negative value.
