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प्रश्न
A fuse is a short piece of wire of high ______ and low ______.
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उत्तर
A fuse is a short piece of wire of high resistance and low melting point.
संबंधित प्रश्न
The SI unit of charge is volt.
A 5 V battery is connected to two 20 Ω resistors which are joined together in series.
(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of the two resistors?
(c) Calculate the current that flows from the battery?
(d) What is the p.d. across each resistor?
(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:
(i) Total resistance.
(ii) Current shown by the ammeter A
What is international convention of colour coding in a cable?
Explain with the help of a diagram how does 'short circuiting' occur in an electric kettle.
Electric current flows through a circuit only when:
