Advertisements
Advertisements
प्रश्न
How many electrons are present in 1 C?
एक पंक्ति में उत्तर
Advertisements
उत्तर
The charge on one electron is 1. 6 x 10-19 coulombs.
Therefore, lC charge carries `(1/(1.6 xx 10^19))` = 6.25 x 1018 electrons.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Which particles constitute the electric current in a metallic conductor?
Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.
The following circuit diagram shows three resistors 2 Ω, 4 Ω and R Ω connected to a battery of e.m.f 2V and internal resistance 3 Ω. If the main current of 0.25 A flows through the circuit, find:
- the p.d. across the 4 Ω resistors,
- the p.d. across the internal resistance of the cell,
- the p.d. across the R Ω or 2 Ω resistors, and
- the value of R.

Calculate the electric current supplied by a 12 V battery of an automobile to a starter that develops a power of 2.4 kW.
State two characteristics of a fuse wire.
Find the effective resistance in the following circuit diagrams (Fig.):

Why is an ammeter always connected in series while the voltmeter always in parallel to a circuit across which voltage is to be measured?
Fill in the blank :
1 mA = ............................. A.
State expression for Cells connected in series.
For current to flow, one needs art open circuit.
