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What do you mean positive temperature co-efficient and negative temperature co-efficient of temperature?
A positive temperature coefficient means that the resistance of a material increases as temperature increases. Conversely, a negative temperature coefficient means that the resistance decreases as temperature rises. These coefficients are important in understanding how materials respond to changes in temperature and are commonly seen in the properties of semiconductors and resistors.
What else can I help you with?
What is the temperature co-efficient of a resistance of a thermister?
The temperature coefficient of a thermistor is a measure of how much its resistance changes with temperature. It is typically expressed in units of percent resistance change per degree Celsius. Negative temperature coefficients mean the resistance decreases as temperature increases, while positive coefficients mean the resistance increases with temperature.
What does it mean when velocity is negative?
When velocity is negative, it means that the object is moving in the opposite direction of its positive velocity.
What does it mean if velocity is negative in a physical context?
In a physical context, a negative velocity indicates that an object is moving in the opposite direction of its positive velocity.
What does positive and negative mean in physics?
In physics, positive and negative typically refer to the direction of a physical quantity, such as velocity or charge. A positive value indicates a quantity is moving in one direction, while a negative value indicates movement in the opposite direction. It's a way to describe the orientation or polarity of a physical property.
Electric field is positive or negative?
Did you mean "The strength of electric field is positive or negative"? Anyway, there is your answer.. The strength of an electric field E at any point is defined as the electric force F exerted per unit positive electric charge q at that point, or E = F/q.You can say that it is positive.
What does the acronym PTC mean?
1) Positive Temperature Coefficient 2) Positive Train Control.
Why do conductor have a positive coefficent?
You mean positive temperature coefficient? Yes conductors as they get heated then due to the nucleii vibrating with greater amplitude would have a grip over the moving electrons and so the resistivity increases with the increase in temperature. Hence positive temperature coefficient.
Is it possible for a coefficient of variation to be negative?
Of course it is! If the mean of a set of data is negative, then the coefficient of variation will be negative.
Is it possible for a coefficient of variation to be negative Explain.?
Of course it is! If the mean of a set of data is negative, then the coefficient of variation will be negative.
What is the temperature co-efficient of a resistance of a thermister?
The temperature coefficient of a thermistor is a measure of how much its resistance changes with temperature. It is typically expressed in units of percent resistance change per degree Celsius. Negative temperature coefficients mean the resistance decreases as temperature increases, while positive coefficients mean the resistance increases with temperature.
What is coefficient of skewness in a variable concentration?
A measure of skewness is Pearson's Coefficient of Skew. It is defined as: Pearson's Coefficient = 3(mean - median)/ standard deviation The coefficient is positive when the median is less than the mean and in that case the tail of the distribution is skewed to the right (notionally the positive section of a cartesian frame). When the median is more than the mean, the cofficient is negative and the tail of the distribution is skewed in the left direction i.e. it is longer on the left side than on the right.
What does negative answer mean?
its negative! negative reply, answer that is not positive
Do withdrew mean positive or negative?
positive
Can the sample mean in statistics be either positive or negative?
It can have either a negative or positive trend
Can you have a negative coefficient in a direct variation?
Yes, you can have a negative coefficient in a direct variation. So if you had y = -7x, that would be a direct variation. If you have y = -x, I do not know, if that is what you mean. Hope it helped.
What is a negative mean?
IN statistics yes there is a negative mean. Mean is the average of multiple numbers. Negative is opposite of positive.
What does it mean for variables to show correlation?
A positive correlation coefficient means that as the value of one variable increases, the value of the other variable increases; as one decreases the other decreases. A negative correlation coefficient indicates that as one variable increases, the other decreases, and vice-versa.
