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प्रश्न
Tick(✓) the correct choice in the following:
The outer casing of an electric iron is generally connected to earth in order
to
पर्याय
Protect the user from electric shock by short circuiting and consequently
breaking the circuit.Prevent the fuse from burning out.
Protect the iron.
Complete the electrical circuit to the iron.
Allow the current to get away.
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उत्तर
Protect the user from electric shock by short circuiting and consequently
breaking the circuit.
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संबंधित प्रश्न
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?
Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45
Tick (✓) the correct choice among the following :
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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 .
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Complete the following:
1 kWh = _________ J
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State whether true or false. If false, correct the statement.
Current can produce magnetic field.
A charge of 400C flows through a conductor for 13 minutes and 20 seconds. Find the magnitude of the current flowing through the conductor.
