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Electrical current in copper is the flow of electrons which are negaitve charge particles. In a typical battery, electrons flow from the negative (bottom) side to the positive (top, nipple) side. However, the engineering convention is to call the "plus" side of the battery the source so current is said to flow from the plus side to the negative side -- which is the opposite to the physical flow of electrons.
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What does the negative sign on the value of an enthalpy of formation indicate?
A negative enthalpy of formation indicates that energy is evolved.
What does negative sign if the value of magnification of a mirror indicate?
It means that the pre-image and image are on opposite sides of the centre of magnification.
What is the percent of the decrease in price from 14.44 to 13.72?
Answer:4.99%Solution:We can use the equation of % growth rate:(Current value/Previous Value - 1) * 100%=( 13.72/14.44 - 1) * 100%= -4.99 %the negative sign indicate that there is decrease in price, i.e.the % decrease of the price = 4.99%
Which are the positive and negative?
The ones with the + sign are positive. The ones with the - sign are negative.
When you multiply a negative by a positive what sign do you get?
You get a negative.
How you can indicate the current direction in the network?
If we go for the diagramatic representation then battery positive is represented by the long terminal and battery negative is represented by the short terminal then the direction of the current is given by an arrow from positive terminal to negative terminal (Therotically electrons flow from negative to positive but we represent current flow from positive to negative. This is the sign convention )
What negative correlation indicate?
the negative sign on correlation just means that the slope of the Least Squares Regression Line is negative.
What does the negative sign on the value of an enthalpy of formation indicate?
A negative enthalpy of formation indicates that energy is evolved.
What does en indicate on a welding rod?
The letters EN , on a welding electrode , indicate "electrode negative" , that is the electrode is to be used with a DC current , in the negative position, or polarity.
When using kirchhoffs current law if negative answer is found for current flow what does this indicate?
A negative answer in a Kirchhoff's Current Law calculation indicates that the assumed direction of current flow was incorrect. It suggests that the actual direction of current flow is opposite to the assumed direction. Therefore, the sign of the calculated current should be corrected to reflect the actual flow direction.
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.
What equation is used to indicate the exothermic reaction?
An exothermic reaction is typically indicated by a negative sign in front of the enthalpy change (∆H) in the reaction equation. This negative sign signifies that heat is released to the surroundings during the reaction.
What does negative sign if the value of magnification of a mirror indicate?
It means that the pre-image and image are on opposite sides of the centre of magnification.
When is a minus sign used in acceleration and deceleration formulas?
A minus sign is used in acceleration and deceleration formulas to indicate direction. If the acceleration is in the opposite direction of the motion, a negative sign is used. For deceleration, which is a form of acceleration that opposes the motion, a negative sign is also used to show the decrease in velocity.
Why value of hall coefficient is negative?
The Hall coefficient has the same sign as the charge carrier. The charge carrier in a normal electric current, the electron, is negative, and as a result the Hall coefficient is negative.
Does the negative sign come before or after the dollar sign?
Does the negative sign come before or after the dollar sign?The negative sign comes before the dollar sign.
Why during measurement the measured voltage and currents have negative sign?
Because of the polarity of the circuit. The signs of measured current and voltage depends on the direction of the current and voltage.
