The value of Planck's constant is
- A$6.63 \times 10^{-34} \, J \cdot s$
- B$6.63 \times 10^{34} \, J/s$
- C$6.63 \times 10^{-34} \, kg \cdot m^2$
- D$6.63 \times 10^{34} \, kg/s$
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