Advertisements
Advertisements
प्रश्न
Calculate the equivalent resistance between A and B in the adjacent diagram.
उत्तर
R1 = 3 + 2 = 5 ohm
R2 = 30 W
R3 = 6 + 4 = 10 ohm
`"R"_1 , "R"_2 and "R"_3 `are connected in parallel
`1/"R" = 1/"R"_1 + 1/"R"_2 + 1/"R"_3`
`=1/5+1/30+1/10=10/30`
R = 3 ohm
APPEARS IN
संबंधित प्रश्न
If the lamps are both the same in the figure given below and if A1 reads 0.50 A, what do A2, A3, A4 and A5 read?
The diagram shows two ways of connecting three lamps P, Q and R to A.C. supply of 220 V.
Fig . shows the core of a transformer and i ts input and output connections
State the material used for the core and describe th e structure of the core.
(a) Use the values given in the diagram to calculate the turns ratio for the transformer and connections, labeling all parts of the diagram .
(b) If a current of 2 A is taken from th e output, calculate th e current in the input circuit (Assume the transformer to be ideal ).
State the S.I. units of electrical power.
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
Calculate the current through a 60 W lamp rated 250 V. If the line voltage falls to 200 V, how is power consumed by the bulb affected?
Answer the following question.
What is the function of a galvanometer in a circuit?
1020 electrons, each having a charge of 1.6 x 10-19 C, flows in a circuit V is 0.1s. What is the current in ampere?
