Dry cell A common dry cell used in torches consists of a rod surrounded by a chemical paste in a metal case.
ELECTRIC CURRENT AND ITS EFFECTS
303283
Given figure is a symbol of:
1 Bulb
2 Battery
3 Switch
4 Fixed resistance
Explanation:
Switch Electrical symbols of bulb, battery, switch and fixed resistance are shown in the figure. Thus symbol shown in the question represents a switch. A switch is used to make or break a connection in the electrical circuit.
ELECTRIC CURRENT AND ITS EFFECTS
303284
The magnetic material around the coil is wound is called:
1 Magnetic substance
2 Core
3 Soft iron
4 None
Explanation:
Core The magnetic material around the coil is wound is core.
ELECTRIC CURRENT AND ITS EFFECTS
303285
Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’
1 Bulb C will glow first
2 Bulb B and C will glow simulaneously and bulb A will glow after some time.
3 All the bulbs A, B and C will glow at the same time.
4 The bulbs will glow in the order A, B and C.
Explanation:
All the bulbs A, B and C will glow at the same time. All the bulbs will glow simultaneously because there is no time lag in the flow of current as soon as the circuit is complete.
Dry cell A common dry cell used in torches consists of a rod surrounded by a chemical paste in a metal case.
ELECTRIC CURRENT AND ITS EFFECTS
303283
Given figure is a symbol of:
1 Bulb
2 Battery
3 Switch
4 Fixed resistance
Explanation:
Switch Electrical symbols of bulb, battery, switch and fixed resistance are shown in the figure. Thus symbol shown in the question represents a switch. A switch is used to make or break a connection in the electrical circuit.
ELECTRIC CURRENT AND ITS EFFECTS
303284
The magnetic material around the coil is wound is called:
1 Magnetic substance
2 Core
3 Soft iron
4 None
Explanation:
Core The magnetic material around the coil is wound is core.
ELECTRIC CURRENT AND ITS EFFECTS
303285
Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’
1 Bulb C will glow first
2 Bulb B and C will glow simulaneously and bulb A will glow after some time.
3 All the bulbs A, B and C will glow at the same time.
4 The bulbs will glow in the order A, B and C.
Explanation:
All the bulbs A, B and C will glow at the same time. All the bulbs will glow simultaneously because there is no time lag in the flow of current as soon as the circuit is complete.
Dry cell A common dry cell used in torches consists of a rod surrounded by a chemical paste in a metal case.
ELECTRIC CURRENT AND ITS EFFECTS
303283
Given figure is a symbol of:
1 Bulb
2 Battery
3 Switch
4 Fixed resistance
Explanation:
Switch Electrical symbols of bulb, battery, switch and fixed resistance are shown in the figure. Thus symbol shown in the question represents a switch. A switch is used to make or break a connection in the electrical circuit.
ELECTRIC CURRENT AND ITS EFFECTS
303284
The magnetic material around the coil is wound is called:
1 Magnetic substance
2 Core
3 Soft iron
4 None
Explanation:
Core The magnetic material around the coil is wound is core.
ELECTRIC CURRENT AND ITS EFFECTS
303285
Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’
1 Bulb C will glow first
2 Bulb B and C will glow simulaneously and bulb A will glow after some time.
3 All the bulbs A, B and C will glow at the same time.
4 The bulbs will glow in the order A, B and C.
Explanation:
All the bulbs A, B and C will glow at the same time. All the bulbs will glow simultaneously because there is no time lag in the flow of current as soon as the circuit is complete.
Dry cell A common dry cell used in torches consists of a rod surrounded by a chemical paste in a metal case.
ELECTRIC CURRENT AND ITS EFFECTS
303283
Given figure is a symbol of:
1 Bulb
2 Battery
3 Switch
4 Fixed resistance
Explanation:
Switch Electrical symbols of bulb, battery, switch and fixed resistance are shown in the figure. Thus symbol shown in the question represents a switch. A switch is used to make or break a connection in the electrical circuit.
ELECTRIC CURRENT AND ITS EFFECTS
303284
The magnetic material around the coil is wound is called:
1 Magnetic substance
2 Core
3 Soft iron
4 None
Explanation:
Core The magnetic material around the coil is wound is core.
ELECTRIC CURRENT AND ITS EFFECTS
303285
Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’
1 Bulb C will glow first
2 Bulb B and C will glow simulaneously and bulb A will glow after some time.
3 All the bulbs A, B and C will glow at the same time.
4 The bulbs will glow in the order A, B and C.
Explanation:
All the bulbs A, B and C will glow at the same time. All the bulbs will glow simultaneously because there is no time lag in the flow of current as soon as the circuit is complete.
