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Questions and Answers
Which of the following gates is considered a universal gate in digital electronics?
Which of the following gates is considered a universal gate in digital electronics?
- AND gate
- OR gate
- NAND gate (correct)
- NOT gate
According to classical theory, what was Rutherford's atom?
According to classical theory, what was Rutherford's atom?
- Electrostatically stable
- Semi-stable
- Electrodynamically unstable (correct)
- Stable
In thermodynamics, the Zeroth law is related to:
In thermodynamics, the Zeroth law is related to:
- Diffusion
- Entropy
- Thermal equilibrium (correct)
- Work done
If an electromagnetic wave is described by the function $E = E_0 ext{sin}(rac{2 ext{π}x}{λ} - 2 ext{π}ft)$, then:
If an electromagnetic wave is described by the function $E = E_0 ext{sin}(rac{2 ext{π}x}{λ} - 2 ext{π}ft)$, then:
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From the given graph of electric field variation between two charges, which statement is correct?
From the given graph of electric field variation between two charges, which statement is correct?
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If a constant voltage is applied between the two ends of a uniform metallic wire, when will the heat developed double?
If a constant voltage is applied between the two ends of a uniform metallic wire, when will the heat developed double?
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Study Notes
Digital Electronics
- The NAND gate is known as a universal gate as it can be used to construct any other gate (AND, OR, NOT).
Classical Theory of Atom
- Rutherford's atom model proposed that an atom consists of a small, dense nucleus surrounded by orbiting electrons, resembling a miniature solar system.
Thermodynamics
- The Zeroth law of thermodynamics establishes thermal equilibrium and the concept of temperature, stating that if two systems are in thermal equilibrium with a third system, they are in equilibrium with each other.
Electromagnetic Waves
- The equation (E = E_0 \sin\left(\frac{2\pi x}{\lambda} - 2\pi ft\right)) describes the electric field component of an electromagnetic wave, where (E_0) is the amplitude, (\lambda) is the wavelength, and (f) is the frequency.
Electric Field Variation
- To accurately assess statements regarding electric field variations between two charges, consider factors like charge magnitude, distance, and the arrangement of the charges.
Heat Development in Conductors
- In a uniform metallic wire, if a constant voltage is applied, the heat developed will double if the time duration is doubled, given that heat production is proportional to time in a resistive circuit.
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