ICSE|Exercise Exercises (Section II) Short answer questions |8 Videos
ELECTRICITY
ICSE|Exercise Exercises (Section II) Long answer questions |8 Videos
ELECTRICITY
ICSE|Exercise Exercises (Section II) Give reasons for the following|8 Videos
ENERGY
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A potentiometer circuit has been setup for finding. The internal resistance of a given cell. The main battery used a negligible internal resistance. The potentiometer wire itsefl is 4 m long. When the resistance, R , connected across the given cell, has value of (i) Infinity (ii)9.5 Omega , the 'balancing length' , on the potentiometer wire are found to be 3 m and 2.85 m , respectively. The value of internal resistance of the cell is
The anodic half-cell of lead-acid battery is recharged using electricity of 6 Faraday. The amount of PbSo_(4) electrolyzed in moles during the process is__________.
The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO_(4) electrolyzed g during the process is: (Molar mass of PbSO_(4) = gmol^(-1) )
The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO_(4) electrolyzed in g during the process is : (Molar mass of PbSO_(4)=303gmol^(-1) )
Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is
Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is
Statement I: Internal resistance of a battery is drawn parallel to a battery in electical circuit. Statement II: Heat generated in a battery is due to internal resistance.
What type of a battery is lead storage battery? Write the anode and cathode reactions and the overall cell reaction occurring in the operation of a lead storage battery. (b) Calucluate the potential for half-cell containing. 0.10 M K_(2)Cr_(2)O_(7)(aq), 0.20 M Cr^(3+) (aq) and 1.0 xx 10^(-4) M H^(+) (aq) The half -cell reaction is Cr_(2)O_(7)^(2-) (aq) + 4H^(+) (aq) + 6 e^(-) to 2 Cr^(3+) (aq) + 7H_(2)O(l) and the standard electron potential is given as E^(o) = 1.33V .
In the figure both cells A and B are of equal emf. Find R for which potential difference across battery A will be zero, long time after the switch is closed. Internal resistance of batteries A and B (r_1) and (r_2) respectively (r_(1)gtr_(2)) .
In the circuit shown, total power supplied by an ideal battery is 80 W. if R = 10 Omega . Then EMF of the battery is
ICSE-ELECTRICITY -Exercises (Section II) Distinguish between the following
