What Is Entropy Of The Universe
Entropy is the measure of the disorder. According to the second law of thermodynamics, the entropy of the universe is... View Article
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What Is The Principle Of Photocell
The photocell is a device that works on the principle of the photoelectric effect. A photocell converts light energy to... View Article
What Happens When An Inductor Is Fully Charged
A fully charged inductor acts as a short circuit. There will be a flow of current without any voltage drop.
What Is The Cause Of Rotational Motion
When a torque is applied to an object along an axis it causes rotational motion of the object. The torque,... View Article
Is Electric Force Opposite Electric Field
The direction of the electric force is opposite to the direction of the electric field for a negatively charged electron.... View Article
Can Rubbing Cause Static Electricity
The rubbing of objects or friction causes static electricity. This is caused by the movement of the electrons from one... View Article
How Does Temperature Affect The Spring Constant
Yes, the spring constant decreases when there is an increase in temperature. The spring constant is determined using Hooke’s law.... View Article
Where Should The Voltmeter Be Placed In A Circuit
The voltmeter is used to measure the potential difference between two points in a circuit. The voltmeter should be placed... View Article
Can You Have Negative Torque
Torque is a vector quantity having both magnitude and direction. A screwdriver can be turned both clockwise and anticlockwise to... View Article
How Does Temperature Affect The Emf Of A Cell
The EMF of the cell decreases with the temperature. The temperature value is negative in the Nernst equation.
Can A Multimeter Be Used As A Voltmeter
The multimeter is a metre with multiple functions. Multimeters are commonly used to measure voltage, resistance and current. Therefore, multimeters... View Article
Does Convection Need A Medium
The transfer of heat by convection requires a material medium. Convection is caused by the bulk movement of the molecules... View Article
Can Entropy Change Be Zero
The entropy change of the system is given by the difference between the entropy at the final state and the... View Article
Can The Laws Of Thermodynamics Be Broken
The laws of thermodynamics are based on certain observations. A law is an observed behaviour of that nature and not... View Article
Why Is Latent Heat Hidden
The latent heat is called hidden heat because it does not reflect as temperature changes. Latent heat remains hidden during... View Article
Where Are Air Core Inductors Used
Air core inductors are used in RF running coils, filter circuits, snubber circuits. It is used in TV and radio... View Article
Which Material Has The Highest Youngs Modulus
The diamond is the hardest material. It also has the highest Young’s modulus. Young’s modulus is the ratio of longitudinal... View Article
Which Material Is Not A Good Semiconductor
Semiconductors are materials with smaller bandgaps. Insulators and conductors are not semiconductors. Materials like silicon and germanium are the most... View Article
If The 1st Term And Common Ratio Of A Gp Are 1 And 2 Respectively Then S1 S3
(1) (1/3)(2n-5n+4) (2) (1/3)(22n+1-5n) (3) (1/3)(22n+1-3n -2) (4) (1/3)(22n+1-5n2) Solution: Given a = 1 and r = 2 Sn =... View Article
The Value Of The Common Difference Of An Ap Which Makes T1 T2 T7 Least Given That T7 Equals 9 Is
(1) 33/2 (2) 5/4 (3) 33/20 (4) none of these Solution: Let a be the first term of AP and... View Article
