243 prompts matching "X-ray intensity and penetrating power problems"
Teach me: What electric current is, and how it is measured
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Quiz: Conventional current and electron flow
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Let me explain: The ammeter and how it is connected
I have just studied the ammeter and how it is connected in my SS2 Physics class. Let me ex
Exam prep: Current in a metallic conductor and in an electrolyte
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Quiz: Potential difference, and how it differs from e.m.f.
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Let me explain: The voltmeter and how it is connected
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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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Teach me: What resistance is, and what it depends on
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Quiz: Ohm's law and how it is stated
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Let me explain: Resistivity and the factors affecting resistance
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Practice set: The ohmic conductor and the non-ohmic conductor
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Exam prep: The advantages and disadvantages of a series connection
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Exam prep: Combining series and parallel sections in one circuit
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Quiz: The fuse and how it protects a 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
Practice set: The circuit breaker and how it works
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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
Exam prep: The a.c. generator and how it works
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Quiz: Oersted's experiment and what it showed
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