250 prompts matching "Photocells in automatic doors and light meters"
Teach me: What electric charge is, and the two kinds of it
You are my personal SS2 Physics tutor. Teach me what electric charge is, and the two kinds
Quiz: Charging by friction, by contact and by induction
Act as my SS2 Physics tutor and quiz me on charging by friction, by contact and by inducti
Let me explain: The gold-leaf electroscope and the uses it is put to
I have just studied the gold-leaf electroscope and the uses it is put to in my SS2 Physics
Practice set: Conductors, insulators and semiconductors
Act as my SS2 Physics tutor. Give me five practice questions on conductors, insulators and
Worked example: Calculating charge from current and time
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Exam prep: Current in a metallic conductor and in an electrolyte
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Practice set: Internal resistance and the lost volts
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Exam prep: Cells connected in series and in parallel
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Real-life Nigeria: The maintenance and charging of a car battery
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Let me explain: Resistivity and the factors affecting resistance
I have just studied resistivity and the factors affecting resistance in my SS2 Physics cla
Worked example: Calculating resistance from voltage and current
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Real-life Nigeria: Series circuits in Nigerian decorative lighting
Act as my SS2 Physics tutor. Show me where series circuits in Nigerian decorative lighting
Exam prep: Combining series and parallel sections in one circuit
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Let me explain: Earthing, and why an appliance is earthed
I have just studied earthing, and why an appliance is earthed in my SS2 Physics class. Let
Spot my mistake: Overloading a socket, and what follows from it
Act as my SS2 Physics tutor. Show me a worked solution on overloading a socket, and what f
Let me explain: Lenz's law and the direction of an induced current
I have just studied Lenz's law and the direction of an induced current in my SS2 Physics c
Let me explain: The field pattern around a straight wire and around a coil
I have just studied the field pattern around a straight wire and around a coil in my SS2 P
Physics at work: The loudspeaker, and how it turns current into sound
Act as my SS2 Physics tutor. Explain which Nigerian jobs and industries depend on the loud
Let me explain: Series and parallel circuits reviewed
I have just studied series and parallel circuits reviewed in my SS2 Physics class. Let me