Flashcards in Current Electricity Deck (9):
If there are n batteries and polarity of m batteries are reversed , then what is the formula of current I ?
Formula for power and hey entered across a resistor
P= V²/R= i²R= Vi
H= V²/R x t=i²Rt = Vit
For conversion of galvanometer into ammeter , shunt resistance S=?
S= [i(g)/ i-i(g)]G
For conversion of a galvanometer into voltmeter , V=? And R=?
V= i(g) (G+R)
R= V/i(g) - G
EMF of battery E=?
Power supplied/ consumed by battery = ?
P= +- Ei
Internal resistance r of a battery in the experiment of potentiometer =?
r= R(E/V - 1)= R(l1/l2 -1)
Comparison of EMFs of two batteries in the experiment of potentiometer E1/E2=?