Electromotive force of a cell is basica...

Electromotive force of a cell is basically a

force

power

work

current capacity

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What are the main differences between electromotive force of cells and cell potential?

Write points of difference between (i) electrode potential and electromotive force (ii) primary cells and secondary cells (iii) electrolytic cell and electrochemical cells.

A cell is prepared by dipping copper rod in 1 M copper sulphate solution and zinc rod in 1 M zinc sulphate solution. The standard reduction potential of copper and zin c are 0.34 V and - 0.76 V respectively. (i) What will be the cell reaction ? (ii) What will be the standard electromotive force of the cell ? (iii) Which electrode will be positive ?

Unit of electromotive force is

Dimensional formula for electromotive force is same as that for

Assertion : Electromotive force is a force which helps the electrons to flow and produce current. Reason : Electromotive force is independent of the voltage across the cell.

There is a definite potential difference between the two ends of a potentiometer. Two cells are connected in such a way that first time help each other, and second time they oppose each other. They are balanced on the potentiometer wire at 120cm and 60cm length respectively. compare the electromotive force of the cells. potentiometer wire at 120cm and 60cm length respectively. Compare the electromotive force of the cells.

A battery is used to charge a parallel plate capacitor till the potential differece between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be

The equation of electromotive forces for an electric circuit containing resistance and self inductance is E=R \ i+L(d i)/(dt), where E is the electromotive force given to the circuit, R , the resistance and L , the coefficient of induction. Find the current i at time t when (i) E=0\ (ii) E=a ,non-zero constant.

ALLEN-CURRENT ELECTRICITY-EX.II

In the arrangement of resistances shown below, the effective resistanc...
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A potentiometer wire of length 100cm has a resistance of 10Omega. It i...
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Electromotive force of a cell is basically a
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A battery of emf 10 V and internal resistance 0.5 Omega is connected a...
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A galvanometer has resistance G and Current I(g) produces full scale d...
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In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right ...
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When a resistance of 2 ohm is connected across terminals of a cell, th...
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Two nonideal batteries are connected in parallel. Consider the followi...
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The current in 8Omega resistance is (as per given circuit)
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Assertion : Electric field inside a hollow sphere conductor is 0. Rea...
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Assertion: A voltmeter must b e connected in parallel in a circuit and...
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Assertion : Electric field outside the conducting wire which carreis a...
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Assertion:- Kirchhoff's voltage law indicates that field is conservati...
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Assertion: Terminal potential difference of a cell is always less than...
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Assertion: When wheatstone bridge is balanced then current through cel...
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Assertion: Potentiometer measures correct value of emf of a cell. Re...
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Assertion : When cells are connected in parallel to the external loa...
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Potentiometer wire is made of manganin because it has
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Assertion: meterbridge wire is made up of manganin Reason: The tempe...
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Assertion: Current is a scalar quantity. Reason: Electric current a...
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